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Question

Answer 1

+7 A:

include the radix:

parseInt("09", 10);

Gabe Moothart 2009-10-09 17:49:19

Thanks for the answer dude.

jessegavin 2010-09-21 21:41:07

Answer 2

A:

parseInt("09", 10);

or

parseInt(parseFloat("09"));

JonH 2009-10-09 17:50:29

Answer 3

+1 A:

parseInt("09",10);

returns 9 here.

It is odd.

alert(parseInt("09")); // shows 9. (tested with Opera 10)

JCasso 2009-10-09 17:54:49

He's asking for JS

JonH 2009-10-09 17:56:02

@JonH: Right. Thanks for warning. Since he wrote string instead of String I was mistaken.

JCasso 2009-10-09 17:59:05

Depending on the browser and version parseInt("09") can return 0.It is a bug.

JonH 2009-10-09 18:34:05

@JonH: can you please check this: http://www.w3schools.com/jsref/jsref_parseInt.asp document.write(parseInt("010") also displays 10 here.

JCasso 2009-10-09 18:39:26

@JonH: It's not actually a bug. ECMAScript allows implementations to treat numbers with leading zeros as octal. Some implementations do, and some don't.

Matthew Crumley 2009-10-09 19:27:16

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How to parseInt a string with leading 0

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