Html5 Developer

I'm trying to learn to write more efficient CSS, particularly as I'm working with a fairly … Read more Css Child Selector Performance Vs. Class Bloat

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 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"

What things can I do when it's necessary to show many objects and calculate position, collision… Read more How To Improve Performance With Many Objects In Game In Html5?

I am trying to calculate the least significant non-zero digit in a factorial. I have the following… Read more Least Significant Non-zero Digit Of A Factorial

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

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 testing various performance tweaks for a large website, and I need to quantify how long it … Read more Is There A Definitive Way To Measure "time To Paint" For Performance?

I have a horizontal month calendar that shows the activities for employees per day. Currently it… Read more Improving Nested Ng-repeat + Directive Performance

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 read High Performance Web Sites: Essential Knowledge for Front-End Engineers and in it the autho… Read more Why Do Inline Scripts Block Rendering When Put At The Bottom Of A Page?

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

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

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

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)

What is the best practice to use when swapping an image on a webpage? Altering the image source or … Read more Is It Faster To Swap An Img Src Or Show/hide Multiple Images?

I stumbled across this weird situation(to me) where I might have an image in a html doc multiple ti… Read more Load Duplicate Images Efficiently

Is there a difference in the speed a browser can parse a colour? for example, the colour red, i cou… Read more Efficiency Of Color Selection In Html. Rgb Vs Hex Vs Name

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 am thinking of improving website performance by moving rendering to the client side. The current … Read more Json Or Html: Which Output Can Perform Better?