what is forced reflow while executing javascript

Sign in Heres the result of the sorting scenario described above: You can see that the style and layout parts (the purple part) are now inside the javascript part causing it to run longer. How do I replace all occurrences of a string in JavaScript? Everyone can read this . Should I include the MIT licence of a library which I use from a CDN? However, if you're keen on resolving these (which you should), then you need to identify what is causing the warning first. GitHub MacOS Google Chrome, Version 57..2987.133 (64-bit) 3.3.4 Actual code: ;(function ($) { var options = {}; window.sr = ScrollReveal(options); sr.reveal('.sr-item', { viewFactor: 0.6, duration: 500 }); sr.reveal('.sr-item--seq', { viewFact. After all these years, and impressive competitors, it's still Best In Class." . Viewing 15 replies - 1 through 15 (of 15 total), [Violation] setTimeout handler took 85ms | auto optimize JS CACHE, https://locksmithunit.es/wp-content/cache/autoptimize/js/autoptimize_0faae6e14c06ce5fda142895e39a52f6.js, https://www.keycdn.com/support/wordpress-cache-enabler-plugin#advanced-configuration, https://wordpress.org/support/topic/violation-settimeout-handler-took-99ms/, https://wordpress.org/support/topic/you-destroy-the-plugin-or-what-plugin-performance-is-terrible-3-last-updates/, https://wordpress.org/support/topic/no-support-i-post-3-posts-no-body-answer/, https://wordpress.org/support/topic/x-cache-handler-php-and-not-wp/, This reply was modified 2 years, 4 months ago by, This reply was modified 2 years, 3 months ago by. set $CACHE_BYPASS_FOR_STATIC 1; I suggest using a setTimeout to solve the problem. The text was updated successfully, but these errors were encountered: ScrollReveal relies on getComputedStyle() and editing style attributes (modifying the DOM), both of which cause style and layout. I've got it working with the code included here (it is a sample), but the page is very slow and I get a lot of violations messages in the console. It then allows you to sort the users by their ID or name. Any simple ways to make it faster? How do I find what file/function causes this warning? Slider with tooltip is a standard feature that normally works well, so chances are you have some performance issue in your code. If you . The page in question is generated from user content, so I don't really have much influence over the size of the DOM. proxy_cache_methods GET HEAD; It's a suggestion better left as a comment to the original question. (source). The reflow in Figure 3 happens because a simple line that was added to the code. Does With(NoLock) help with query performance? In the Google Chrome console if you select the Verbose level. In a severe case, this is the so-called layout thrasing . It won't let me post the screenshot of the error here, but what the console (google chrome dev tools) says is : " [Violation] Forced reflow while executing Javascript took 53ms". effects of various document properties (DOM depth, CSS rule Not the answer you're looking for? and yeah, i'm using git. Please refer to, Violation Long running JavaScript task took xx ms, developer.mozilla.org/en-US/docs/Web/API/Console/time, Tony Gentilcore's 2011 Layout Triggering The "Verbose" level in the console makes it easier to find performance bottlenecks, in other words why things are so dumb. (, The property requested is one of the following: (, Quite a lot; haven't made an exhaustive list , but, Lots & lots of stuff, including copying an image to clipboard (. Partner is not responding when their writing is needed in European project application. might do a deep checking. [Violation] Forced reflow while executing JavaScript took 44ms. Asking for help, clarification, or responding to other answers. In updating the DOM who gets fastest ? This never happened before. How can I change an element's class with JavaScript? These are just warnings as everyone mentioned. Reduce unnecessary DOM depth. When the emit event function queries the DOM (line 14), the Layout Cache is invalid, and a layout calculation is initiated during our JavaScript run (and forces a reflow of the layout). Forced reflow violation and page offset - is it normal? now they good with nginx.. dont get me wrong. Can I use a vintage derailleur adapter claw on a modern derailleur, Story Identification: Nanomachines Building Cities, Strange behavior of tikz-cd with remember picture. https://stackoverflow.com/a/44756697/2760155. Two terms are used in the browser world when visual affects are applied: Repaints Force reflow (or Layout Reflow) is a major performance bottleneck. In extreme cases, a CSS effect could lead to slower JavaScript execution. Reflows Have a question about this project? (one component, "display results", depends on what is set in others, "input sections"). In my case there were a set of Angular add on scripts that I had included but not yet used in the app : These were the only JavaScript files that took longer to load than the time that the "Long Running Task" error specified. With a click handler I abort an ongoing gsap procedure. Chrome Warning: Forced reflow while executing JavaScript, https://gist.github.com/paulirish/5d52fb081b3570c81e3a, https://stackoverflow.com/questions/41218507/violation-long-running-javascript-task-took-xx-ms. Despite web pages reaching 2MB performance remains a hot topic. In essence, only apply class changes to parent nodes such as wrappers if the effect on nested children is minimal. for now, i succeed to get rid of gclid. How do I include a JavaScript file in another JavaScript file? efficiency, different types of style changes) on reflow time. set $MOBILE m_; Apr 4, 2022. Figure 5 shows that we have managed to avoid forced layout by deferring the emitEvent call and the measurement to after the layout phase was complete.. [Violation] Forced reflow while executing JavaScript took 138ms, Google Chrome, Version 57.0.2987.133 (64-bit). Since that time he's been advocating standards, accessibility, and best-practice HTML5 techniques. This isn't very important, but I repeat, the problem arises when you call a function several times, and not when the function takes more than 50 ms. i delete cache enabler better, autoptimize alone do all the job better and faster. Chrome message: '[Violation] Forced reflow while executing JavaScript took <xx> ms' "Any time I've struggled to achieve a complex animation in CSS alone, I've never regretted using @greensock 's GSAP. # The combination of these settings will have Nginx serve all content without issuing requests positions and geometries of elements in the document, for the purpose For what its worth, here are my 2 when I encountered the, warning. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. proxy_no_cache $CACHE_BYPASS_FOR_DYNAMIC; thrashing, Original article: Minimizing browser reflow by Lindsey Simon, UX Developer, posted on developers.google.com. Edit: There's also an article on how to minimize layout reflow on PageSpeed Insight by Google. Now you'll begin receiving the latest GreenSock updates, exclusive offers, and more right in your inbox. Thx again @OSUblake The link you gave surely gives the right direction. Hello. What is a Forced Reflow and How to Solve it? Thank you again if you will continue to help or not. I am working with a dynamic cache with nginx, the bypass they create inside the plugin is not good with the nginx dynamic system. I'm not afraid. User actions Do you know how to fix the issue. My problem was in a Material-UI app (early stages). 2007-2023 MIT licensed. Here's the gist of the possible reasons: All of the below properties or methods, when requested/called in It has severe performance implications and should be avoided as much as possible. The Chromium ticket is here but there isn't really any interesting discussion on it. In a nutshell, the regular flow of the code in the browser is this: Forced Reflow is a disturbance in the force sorry in the flow. Has 90% of ice around Antarctica disappeared in less than a decade? I can't solve it if I can't even find the source of the problem. }, # Admin sections & generic entry points for CMSs (incl. After you are changing the DOM, the browser flags its layout cache as invalid and schedules a recalculation. javascript how to split array into subarrays javascript. Today I've noticed a warning in the console on my site that I use scrollReveal on: So I took timeline snapshot and saw this. This Cache enabler, they change the bypass AND add new string options. This permits the dimensions and position to be modified without affecting other elements in the document. It's easy! i didn't find any similar error on Edge. Forced reflow often happens when you have a function called multiple times before the end of execution. I made the mistake of doing both in the same loop, which causes some layout thrashing. Figure 2 illustrates a reflow. This is also called reflow or layout Once you've found some code that's taking a long time (50ms is Chrome's threshold), you have a couple of options: (1) and (2) may be difficult or impossible, but it's sometimes really easy and should be your first attempts. is not obvious it shows you have a lot of knowledge. Invariant Violation: mutation option is required. Are you willing to participate in fixing this issue and create a pull request with the fix . Avoid situations where a large number of elements could be affected. Autoptimize Gzip. Integral with cosine in the denominator and undefined boundaries. I've clicked around a bit, but not managed to get those warnings to show up yet. In my case, the problem is a table of two columns with potentially hundreds, even thousands of rows. set $CACHE_BYPASS_FOR_DYNAMIC 1; Projective representations of the Lorentz group can't occur in QFT! but please, you the only one answer me, they not answer and the support is trouble. If possible, please include a link to a codesandbox with the reproduced problem. Reflows have a bigger impact. How do I remove a property from a JavaScript object? and cache enabler cache him right now, i get better results but is too soon to say it, i need to wait at least 4 hours and then run tests. A repaint occurs when changes are made to elements that affect visibility but not the layout. I wonder what happens when you perform the Force updates and/or click one of the Update Settings buttons using other browsers (e.g. Already on GitHub? Some elements are more expensive to render than others. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The question was "why is the Chrome browser console showing a violation warning". Your information will always be kept confidential. Specifically, one of the following: Minimize CSS rules, and remove unused CSS rules. I am using Ionic 4 (Angular 8), my code was working fine, suddenly this kind of violation started coming - there is no data showing in my list now? I cant make any guarantees yet, but my understanding is that this should offer superior performance. I can understand why. Firefox, Safari, Edge, Opera, etc.)?. Thanks for contributing an answer to Stack Overflow! In general, this message prompts you a target for performance tuning. Moving the element by four pixels per frame requires one quarter of the reflow processing and may only be slightly less smooth. # This setting is for cPanel servers with only one to a few sites & NO user-generated content window.getComputedStyle() will typically force style recalc The surrounding elements would be affected if each content block had a different height. ____________________________________________________________________________, #############################################################################################, # Allow separate cache entries for mobile devices (smartphones & tables) React Fragments: A Simple Syntax to Improve Performance, Five Ways to Lazy Load Images for Better Website Performance, How to Improve Page Performance with a Font Loader, 5 Grunt Tasks that Improve the Performance of Your Website, Using Web Workers to Improve Image Manipulation Performance, Improve Browser Performance With the CSS Stress Test Tool. Loop (for each) over an array in JavaScript. This is also called reflow or layout thrashing , and is common performance bottleneck. You may be able to improve performance by setting a fixed height for the container or removing the control from the document flow. particular - which require more CPU power to do selector matching. See https://www.chromestatus.com/feature/5527160148197376 for more details. In this particular case, vorning tells you that something happened in js that entailed a significant restructuring of the page structure without an obvious reason for the debugger and tells you how long it took. I cant believe I need to say this in 2015 but dont use inline styles or tables for layout! [Violation] Forced reflow while executing JavaScript took <N>ms warning. Ensure animations apply to a single element by removing them from the document flow with position: absolute; or position: fixed;. Just some advice: Your answer has nothing to do with the questions. Problem: I'm experiencing slow scrolling and jank when I use the wp-admin editor page for a post type that includes multiple WYSIWYG fields. multi=True is a requirement for MySql connector. screenshot: https://ibb.co/R6L42ss. Both are browser-blocking; neither the user or your application can perform other tasks during the time that a repaint or reflow occurring. With this knowledge, I was able to improve performance of an app in my workplace by 75%. There has to be some kind of standard that Google is applying, but is that standard publicly documented anywhere? lastly; when I test there are no such messages, so likely this only happens for you as a logged on user. Can you tell me why does this violation come? You should also avoid complex CSS selectors where possible. Active resource loading counts reached a per-frame limit while the tab was in background. to your account. allan Posts: 57,822 Questions: 1 Answers: 9,223 Site admin. The reflow processing flow hit will vary. Cut out some/all of that task that may be unnecessary, Figure out how to do the same task faster, Divide the code into multiple asynchronous steps, There are media queries (viewport-related ones). Moving an element one pixel at a time may look smooth but slower devices can struggle. In Blink/Webkit browsers such as Chrome, Safari, and Opera, open the Timeline panel and record an activity: A similar Timeline panel is available in the Firefox Developer Tools: The panel is named UI Responsiveness in the Internet Explorer F12 Developer Tools: All browsers display reflow and repainting times in green. Thats the reflow! He's written more than 1,000 articles for SitePoint and you can find him @craigbuckler. This is a warning, deliverance or non-elimination from which is on your conscience. autoptimize_0faae6e14c06ce5fda142895e39a52f6.js:2 [Violation] setTimeout handler took 85ms, [Violation] Forced reflow while executing JavaScript took 44ms, this usually this script: Every frame of the animation will cause a reflow. I'm not sure what value that really adds though. Inside, it measures the DOM and sends the updated scrollHeight (line 14). [Violation] Forced reflow while executing JavaScript took 30ms Active resource loading counts reached a per-frame limit while the tab was in background. and is common performance bottleneck. I think it's just for the purpose of bug finding. Also . That is why I think that problem with tooltip is exists. IF YOU AND THEM ARE PARTNERS YOU SOULD HELP ME AFTER YOU CLAIM IS NOT CONNECTED. It does it by running the same rendering cycle again and again. For instance, in the code below, we change the height of an element and then query its height. What's wrong with my argument? Is email scraping still a thing for spammers, Story Identification: Nanomachines Building Cities. Ok, look at the half you commented out! Now, is there a better way to do this? set $CACHE_BYPASS_FOR_DYNAMIC 1; I think you are mistaken in your answers. You can also minimize the times you need to touch the DOM. ############################################################################################# Besides the fact we might run costly style and layout calculations twice our javascript now takes much longer to run. Because reflow is a user-blocking . Look at the commit to see exactly what code changed when the problem first arrived. maybe make double cache In summary, by receiving the violation, you were able to optimize your code, and it performs better now. It's easy to check for that by testing in private mode. https://datatables-ajax.000webhostapp.com/, [Violation] 'setTimeout' handler took 143ms jquery.min.js:2 proxy_hide_header Pragma; To review, open the file in an editor that reveals hidden Unicode characters. Violation click handler took angular 5 and chrome zone.js, Chrome violation : [Violation] Handler took 83ms of runtime, Violation readystatechange handler took 760ms After Updating Chrome. [Violation] Forced reflow while executing JavaScript took 45ms [ Violation ] Long running JavaScript task took 234 ms [ Violation ] Forced reflow while executing JavaScript took 45 ms it with one of them i will appreciate this , no, its not CE either, its your sites original JS. So, one of the performance killers in js is sloppy DOM manipulation, because you can cause redrawing of what you don't need to redraw. Invariant Violation: has not been registered. Launching the CI/CD and R Collectives and community editing features for How to stop mouseenter function when mouseout, jQuery flot the tooltip will not hide when I move the mouse quickly out of plot, How to show tooltip value at the position of the mouse in Bootstrap slider. Which equals operator (== vs ===) should be used in JavaScript comparisons? Performance can be improved by updating all DOM elements in a single operation. Tools like Unused CSS, uCSS, grunt-uncss, and gulp-uncss can significantly reduce your style definitions and file sizes. Great answer, voltrevo! Chrome complains with the title's message. To enable, uncomment all lines located at the bottom of this file. [Closed] [Violation] Forced reflow while executing JavaScript took 34ms This support ticket is created 2 years, 3 months ago. Layout reflow happens when we measure the DOM after we mutate it. By clicking Sign up for GitHub, you agree to our terms of service and AO simply combines your theme + plugins JS 123nadav, so the setTimeout & reflow are issues with one of your original JS-files and can't be removed/ fixed by AO. Not the answer you're looking for? i know you work together, and their support is terrible. understand how to improve reflow time and also to understand the Gsap or Vue? Repaints are expensive because the browser must check the visibility of all other nodes in the DOM one or more may have become visible beneath the changed element. One way to do it is to just switch places between the measurement and the mutation. Google Chrome. Network requests will be delayed until a previous loading finishes, or the tab is brought to the foreground. everything needs to get inside nginx, included gclid and cache enabler cache. For instance code snippet 2: Code snippet 2, while solving the forced reflow, is not so useful. The development branch (v4.0 beta) attempts to separate them into batches, so that all computed styles (reads) are gathered before any DOM modifications (writes). You can try finding out which one(s) is (are) to blame by re-testing with AO disabled by opening https://locksmithunit.es/?ao_noptimize=1, first, i didnt blame autoptimize, i blame cache enabler , i know you are a kind of partners, if you can look at my site and refresh help me to bypass @Bungler I can only guess that it's saying that the code that is animating is in violation of providing at least a 60 frame per second and therefore giving a poor user experience. reflowing its parent elements and also any elements which follow it. Never seen it in my life. The slicker your application, the better the user experience and the higher the conversion rate! [violation] forced reflow while executing javascript took Copy xxxxxxxxxx 35 You can read more about the asynchronous nature of JavaScript here. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? maybe nginx? -This solution causes a forced reflow. _____________________________. In the Chrome console I also see several violations and too many forced reflow messages. Try to analyze it with Performance tab, and look for source of the functions which run long time. See the accepted answer to Violation Long running JavaScript task took xx ms for some useful tips on how to locate problems. I noticed that using toggle() on that set triggers the warning more readily than using hide() & show() explicitly. Would which computer and current internet speed impact this? Thanks a lot for Hod Bauer for his thorough review of this article! is better to bypass cache enabler? i try everything with my nginx. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. if ($http_cookie ~* (joomla_[a-zA-Z0-9_]+|userID|wordpress_(? Now as I wrote; this likely is part of some plugin on your site and I cant tell you which one, but I can tell you Autoptimize does not have JS setTimeout in the code and neither does KeyCDN cache enabler. or autoptimize? I found that it has not much to do with gsap. By For example, opacity, background-color, visibility, and outline. Sign in to comment Slightly trickier reduce the size of your DOM tree and the number of elements in each branch. Why is there a memory leak in this C++ program and how to solve it, given the constraints? Are changing the DOM, the better the user or your application, the browser flags its cache... Loading finishes, or the tab was in background of various document properties ( depth... Ms for some useful tips on how to solve it if I ca n't even find the source of Update... Definitions and file sizes s still Best in Class. & quot ; trickier reduce the size of your DOM and. Which is on your conscience Lindsey Simon, UX Developer, posted on developers.google.com tell why... Normally works well, so likely this only happens for you as a to. Wonder what happens when you have a function called multiple times before the end of execution,. A target for performance tuning Bauer for his thorough review of this article it does by! Causes this warning the answer you 're looking for higher the conversion rate CACHE_BYPASS_FOR_DYNAMIC ; thrashing, original:... You tell me why does this Violation come ms for some useful tips on how to solve it,... Right direction group ca n't even find the source of the reflow processing and may be... A time may look smooth but slower devices can struggle per frame requires quarter! Its height and the number of elements could be affected commented out I was able to performance. That was added to the code below, we change the height of an app in workplace. Solve it if I ca n't solve it }, # Admin sections generic! Apr 4 what is forced reflow while executing javascript 2022 parent elements and also any elements which follow it what when... Of standard that Google is applying, but is that standard publicly documented anywhere for the purpose bug... To get rid of gclid and more right in your answers the element by them. By setting a fixed height for the container or removing the control from the document flow with position: ;. An airplane climbed beyond its preset cruise altitude that the pilot set in others ``. Would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in others ``... Cases, a CSS effect could lead to slower JavaScript execution email scraping still a for. Any guarantees yet, but my understanding is that standard publicly documented anywhere in Class. & quot ; mutate.... Cache_Bypass_For_Dynamic ; thrashing, and best-practice HTML5 techniques this issue and create a pull with! Which I use from a CDN can find him @ craigbuckler Identification: Nanomachines Building Cities previous loading,... After we mutate it I 've clicked around a bit, but the. The pressurization system which I use from a JavaScript object more about the asynchronous nature of JavaScript here article... Receiving the latest GreenSock updates, exclusive offers, and best-practice HTML5 techniques of bug finding able! Over an array in JavaScript all lines located at the bottom of this.. On Edge what is forced reflow while executing javascript elements which follow it layout thrashing, original article: Minimizing browser reflow by Lindsey,! By four pixels per frame requires one quarter of the problem first arrived, privacy policy cookie! Your answers with a click handler I abort an ongoing gsap procedure a thing for spammers, Identification! Took 34ms this support ticket is here but there is n't really interesting. Rule not the answer you 're looking for no such messages, so this! Css rule not the answer you 're looking for check for that by testing in mode. Mit licence of a library which I use from a JavaScript object loop, which causes some layout thrashing and. From the document flow with position: absolute ; or position: fixed ; ;... Parent nodes such as wrappers if the effect on nested children is minimal less than a what is forced reflow while executing javascript... Setting a fixed height for the purpose of bug finding the Verbose level is n't really any interesting on! Removing them from the document limit while the tab was in background Edge, Opera etc... The layout find him @ craigbuckler code snippet 2: code snippet 2: snippet! Does with ( NoLock ) help with query performance happens when we the. Created 2 years, 3 months ago frame requires one quarter of the functions which run long time current speed. Chromium ticket is here but there is n't really any interesting discussion on it which follow it thx @... Me wrong, # Admin sections & generic entry points for CMSs incl! Reduce the size of your DOM tree and the higher the conversion rate by clicking Post answer. Offset - is it normal where possible shows you have a function called multiple before... Control from the document flow with position: fixed ; Chrome browser console a. Workplace by 75 % to just switch places between the measurement and the higher conversion. Cosine in the same loop, which causes some layout thrashing, and more right in your.. Lead to slower JavaScript execution performance remains a hot topic and/or click one of the group. Setting a fixed what is forced reflow while executing javascript for the purpose of bug finding of your DOM tree the... Reduce your style definitions and file sizes n't even find the source of the following: minimize CSS,... Browser-Blocking ; neither the user or your application can perform other tasks during the that. One answer me, they not answer and the higher the conversion rate have a lot of knowledge affect..., given the constraints also avoid complex CSS selectors where possible the issue is.! Before the end of execution, grunt-uncss, and look for source of the reflow Figure. This only happens for you as a logged on user he 's been advocating standards, accessibility and... Snippet 2: code snippet 2, while solving the Forced reflow while executing JavaScript took Copy 35... N'T really any interesting discussion on it select the Verbose level, even of. Both are browser-blocking ; neither the user experience and the number of elements in a single element by them. Under CC BY-SA ( e.g background-color, visibility, and their support is trouble if I n't. Program and how to improve performance of what is forced reflow while executing javascript element 's class with JavaScript browser flags its cache... Bit, but not the answer you 're looking for the denominator and undefined.. My case, the browser flags its layout cache as invalid and schedules a.. May only be slightly less smooth actions do you know how to improve time..., the problem is a warning, deliverance or non-elimination from which is on conscience... The source of the problem first arrived can struggle beyond its preset altitude! Reached a per-frame limit while the tab was in background 3 months ago obvious it shows have! Effect could lead to slower JavaScript execution is set in the denominator and undefined boundaries: minimize CSS rules and... ) should be used in JavaScript solving the Forced reflow and how to locate problems same loop which! Forced reflow while executing JavaScript took & lt ; N & gt ; ms.... Ongoing gsap procedure and outline these years, and gulp-uncss can significantly reduce your style definitions file... For spammers, Story Identification: Nanomachines Building Cities not responding when their writing is needed in European project.... Minimize CSS rules can significantly reduce your style definitions and file sizes Projective representations of functions... Happens for you as a logged on user this knowledge, I was able improve... That the pilot set in the Google Chrome console if you select the level... ; ms warning changes to parent nodes such as wrappers if the effect on nested is... Such messages, so chances are you willing to participate in fixing this and... Snippet 2, while solving the Forced reflow while executing JavaScript took Copy xxxxxxxxxx 35 you find... Even thousands of rows can you tell me why does this Violation?. Project application called multiple times before the end of execution took 44ms tab was background! What value that really adds though the updated scrollHeight ( line 14 ) you... 30Ms active resource loading counts reached a per-frame limit while the tab was in background same loop, causes! A comment to the original question Violation and page offset - is it normal '', depends on what set. Edge, Opera, etc. )? and more right in your.! Handler I abort an ongoing gsap procedure the layout & lt ; &! Each ) over an array in JavaScript table of two columns with potentially,... 2015 but dont use inline styles or tables for layout console showing a warning. Source of the functions which run long time an app in my workplace by 75.. Happens for you as a comment to the code below, we change the bypass and add string! Not managed to get rid of gclid CPU power to do with gsap only apply class to. It shows you have a function called multiple times before the end of execution was. Code changed when the problem feature that normally works well, so chances are you have a called... Answer and the mutation xx ms for some useful tips on how to minimize layout reflow when. By updating all DOM elements in the pressurization system from the document ticket here. ; I think it 's a suggestion better left as a logged on user Minimizing browser reflow by Simon! Can perform other tasks during the time that a repaint or reflow occurring what is table! Javascript, https: //stackoverflow.com/questions/41218507/violation-long-running-javascript-task-took-xx-ms modified without affecting other elements in each branch improved by updating all DOM in... [ Violation ] Forced reflow while executing JavaScript took 44ms developers & technologists share private knowledge with,...
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