jquery - Extract a number from a string? (Javascript) - 


var amount = "(21)";

how go getting number? have gotten work with... 

var amountresult = amount.substring(1, amount.length-1);

...but feels incorrect.

what's better, more flexible way if not surrounded 2 characters?

thanks!

using regular expression more flexible:

var amountresult = amount.match(/\d+/)[0];

and turn number:

var amountresult = parseint(amount.match(/\d+/)[0], 10);

-

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