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I am looking for the best way to replace or add to elements of an array without deleting the origin… Read more Javascript: Is There A Better Way To Retain Your Array But Efficiently Concat Or Replace Items?

Background: So I need to sort lots of strings. Arrays of strings, actually, but that's besides… Read more Difference In Performance Between Calling .localecompare On String Objects And Constructing A Purpose-made Intl.collator Object?

I use a big picture(33440 x 440) and transform the big image, then achieve a animation like as fram… Read more Why Hardware-accelerated Css Animation Cost Too Much "composite Layer" Times In Main Thread?

I've played with jsperf.com and found that prototyped function is 40x slower than 'default&… Read more Why Is Prototype Function 40x Slower Than The Default Declared Function?

I have a very general low level question about dragging. I am specifically interested in learning w… Read more How Frequently Is D3 Drag Event Triggered?

A ajax code that i am using to request a page is consuming too much memory and is making the browse… Read more Ajax Too Slow - Recursion