Javascript RegExp Check for Either String or Integer

Question

I need my regular expression to execute wether the incoming value is a string or an integer. What I have only works with strings. My Javascript is the following:

var regExp = new RegExp(valueToMatch, 'gi');
item.ssn.match(regExp)

The valueToMatch could be either a character that looks like "1" or 1. So basically a string or an integer.

I got the Integer part but what do you mean if it is a string? Do you want to check the type of data? — Naseh Badalov, Apr 23 '20 at 22:56
You may simply use `regExp.test(s)`, or `regExp.test("" + s)` - the string will get coerced to a string automatically. — Wiktor Stribiżew, Apr 24 '20 at 08:35

score 1 · Accepted Answer · answered Apr 23 '20 at 23:05

1

var passVal = typeof(valueToMatch) === 'number'? valueToMatch.toString() : valueToMatch
var regExp = new RegExp(passVal , 'gi');
item.ssn.match(regExp)

You should check the value before passing through regex expression.

answered Apr 23 '20 at 23:05

Han

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what is 'number'? – iChido Apr 24 '20 at 00:15
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`number` is Number is a numeric data type which is `integer` in this case. Have a look : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof – Han Apr 24 '20 at 00:29

Javascript RegExp Check for Either String or Integer

1 Answers1