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150

Remove non numeric characters except dash

rated 0 times [ 155] [ 5] / answers: 1 / hits: 17637 / 10 Years ago, sun, october 5, 2014, 12:00:00

I need to remove all non numeric characters except the dash.
This is my attempt (based on: Regex to get all alpha numeric fields except for comma, dash and single quote):

var stripped = mystring.replace(/[-0-9]+/g, '');

But that doesn't work :-(

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harleyterryp

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answered 10 Years ago yesseniadajab · Accepted Answer

I'd suggest:

var stripped = string.replace(/[^0-9-]/g,'');

JS Fiddle demo.

^ in the character class (within the [ and ]) is the NOT operator, so it matches characters which are not 0-9 or the (escaped) - character.

As noted in the comment to this answer, by Ted Hopp, it's not necessary to escape the - when it's the last character, but I habitually do so in order to save having to remember that proviso.

References:

JavaScript Regular Expressions.