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The hello world books of programming always start you off with i++, however did you know that i++ comes with a bit of overhead? that's because before you can increment i under the hood a new copy of i must be created. Using ++i you don't need that extra copy. i++ will return the current value before incrementing i. ++i returns the incremented version i. This test is to demonstrate that it's faster to use ++i. Get ready get set update your code!

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for (var i = 0; i < 100000; ++i) {}

for (var i = 0; i < 100000; i++) {}

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 2: published on 5th May 2011
• Revision 3: published on 20th June 2011

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