Html5 Academy

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'm quite new with jquery, kindly need any of your assitance for my below question: I have an i… Read more Jquery If With Multiple Value Show And Hide Element

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 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 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

(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

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 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 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 was wondering what is the better/faster way to resize an image. Normally I would resize an image … Read more Is It Better/faster To Resize An Image With Css, Or With The Tag?

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?

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'm at the point where I'll need to keep some data about my control in hidden fields. I'… Read more Does Too Many Hidden Inputs Affect The Page Rendering Speed?

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'm making a simple game in Javascript, in which when an object collides with a wall, it plays … Read more Is Playing Sound In Javascript Performance Heavy?

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?

In response to my answer yesterday about rotating an Image, Jamund told me to use .data() instead o… Read more Save Object States In .data Or Attr - Performance Vs Css?

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?

Each tree node contains other inner widgets, so it takes long time to render the whole 500 items es… Read more Dijit Tree, How To Improve Performance For A Large Tree With 500 Child Nodes Under Root