javascript - numeric/string to only numeric -

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in javascript, how transform "numeric/string" variable numeric? using function or regular expression.?

sample: input: 11.489.301/0001-47 to: 11489301000147

use replace() remove non-numeric characters, , number() convert string type number type:

var num = number("11.489.301/0001-47".replace(/\d/g, ""));  alert(num); //-> 11489301000147

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