Remove all leading zeros from numeric string [duplicate]

Answer 1

why not just use parseInt -

parseInt(00898989899);

Answer 2

parseInt(number, 10)

you can turn it back to a string if it's nessecery

parseInt(number, 10).toString()

Answer 3

parseInt() will do the job.

var num = '00898989899';

parseInt( num, 10 );  // 898989899

Don't forget about the radix argument, especially since you're dealing with leading zeros here.

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If you can be sure that there won't be any zero digit after those leading zeros, you can even go more sneaky and use a combination of String.prototype.lastIndexOf() and String.prototype.slice():

num.slice( num.lastIndexOf( '0' ) + 1 );

Answer 4

You can use a regular expression to match the zeroes at the beginning of the string:

str = str.replace(/^0+/, '');