why does my javascript regex.test() give alternating results

Posted by Dennis George on Stack Overflow See other posts from Stack Overflow or by Dennis George
Published on 2010-05-17T17:35:07Z Indexed on 2010/05/17 17:41 UTC
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JavaScript

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regex

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unexpected

var r = /\d/g;
var a = r.test("1"); // will be true
var b = r.test("1"); // will be false
console.log(a == b); // will be false

Please explain to me why the result of r.test("1") alternates with each call?

I was able to work around the issue I was having by removing the g modifier. However I would still like to understand why this happens.

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