Html5 Forum

I'm a javascript beginner and I'm trying to improve my skills. I'm currently working on… Read more How To Know Which Part Of My Js Is Making It Laggy?

I am working on taking readings about web browser performance and so need to access the window.per… Read more Run Custom Javascript Code After Loading Any Website

Is there a tool out there to measure the actual Render time of an element(s) on a page? I don'… Read more Tool To Measure Render Time

I am trying to find out the average time it takes various pages of a (private) web application for … Read more Finding Web Application Average Load Times

I have something like this ... .. . $('.Class1').so Solution 1: As far as fastest selec… Read more Jquery - More Efficient To Use Multiple Selectors, Or Each

I have a site with extremely many HTML elements (> 100.000). The page is basically a large table… Read more How To Hide Content Not In Visible View On A Page With Many Html Elements To Improve Performance?

I'm doing a little HTML5 game and, while loading my sprites at the beginning of the map, I do s… Read more Horrible Canvas Getimagedata() / Putimagedata() Performance On Mobile

I am using React application and has below font files but on generating the build, react creates t… Read more Preload Font File With Hashed Name

Does the number of hidden input fields in an HTML document affect the speed of page rendering in a … Read more Number Of Hidden Inputs In Html Doc Affecting Page Rendering Speed

I'm in the middle of development of a website, however I cannot work out what is causing this p… Read more Strange Safari Rendering Issues, And Low Performance On Other Browsers

The following document mentions some guidelines for performant scaling of HTML5 Canvas: https://dev… Read more Is Canvas Scaling More Performant Via Css Or Js?

Setup The topic SVG vs. Icon Font is well covered in the web. But even after long searches, I did n… Read more Icon Font Vs. Svg Caching And Network Concern

I have come across this rule in YSlow for performance improvement that says that images should not … Read more Whats The Rationale Behind The Yslow Rule "don't Scale Images In Html"

(Sorry if this is a duplicate, but I don't think it is) Just so you know, I'm using Google … Read more Kineticjs - Moving 4000 Tiles With Stage.draggable

I'm doing a project in Angular 2 and I'm getting an issue that makes my pages lose a lot of… Read more Angular 2 Performance Issue (rendering)

I have some browser-intensive CSS and animation in my webpage and I'd like to determine if the … Read more Website Performance Testing: How Best To Approximate Computer Performance?

For a game in webgl where fps performance is important, what is the most efficient way to make a 2D… Read more Recommended Way To Make A 2d Hud In Webgl

In our MVC5 project there is a page where user can check multiple assets. Each asset is represenete… Read more Chrome Is Slow When There Are A Lot Of Inputs

In terms of performance , what would be better. Using PHP to echo all the HTML output so I can pepp… Read more Escape Html To Php Or Use Echo? Which Is Better?

I have a site with extremely many HTML elements (> 100.000). The page is basically a large table… Read more How To Hide Content Not In Visible View On A Page With Many HTML Elements To Improve Performance?