Finding an integer from a string

Question

I know you can turn a string into an integer using Number and parseInt, but I want to get a number from in the middle or at the end of a string. For example:

'Number 87' --> 87
'data-2384729' --> 2384729
'Beep 8009 Bop' --> 8009

georg · Accepted Answer · 2017-03-26 22:33:07Z

2

You can use RegExp together with String#match.

function getNum(str){
  var res = Number(str.match(/\d+/)[0]);
  console.log(res);
}

getNum('Number 87');
getNum('data-2384729');
getNum('Beep 8009 Bop');

edited Mar 26, 2017 at 22:33

georg

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answered Mar 26, 2017 at 21:28

kind user

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1 Comment

guest271314 Over a year ago

Note .match() returns an array of strings

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