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How to parseInt "09" into 9 ?
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Use parseInt() to remove leading zeros from a number in JavaScript.
The format() method of String class in Java 5 is the first choice. You just need to add "%03d" to add 3 leading zeros in an Integer. Formatting instruction to String starts with "%" and 0 is the character which is used in padding. By default left padding is used, 3 is the size and d is used to print integers.
The replaceAll() method of the String class accepts two strings representing a regular expression and a replacement String and replaces the matched values with given String. The ^0+(?! $)"; To remove the leading zeros from a string pass this as first parameter and “” as second parameter.
include the radix:
parseInt("09", 10); This has been driving me nuts -parseInt("02") works but not parseInt("09").
As others have said, the solution is to specify base 10:
parseInt("09", 10); There's a good explanation for this behaviour here
... In Javascript numbers starting with zero are considered octal and there's no 08 or 09 in octal, hence the problem.
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