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Asked: 2026-05-28T14:55:37+00:00

Is there any way of generating random text which satisfies provided regular expression. I

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Is there any way of generating random text which satisfies provided regular expression.
I am looking for a function which works like below 

var reg = Some Regular Expression  
var str = RandString(reg)
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1 Answer

  1. Editorial Team

    I have seen fairly good solutions in perl and ruby on github, but I think there are technical issues that make a complete solution impossible. For example, /[0-9]+/ has an infinite upper bound, which is not practical for selecting random numbers from.

    Never seen it in JavaScript, but you could translate.

    EDIT: After googling for a few seconds…
    https://github.com/fent/randexp.js

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