regex to match empty string

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Nour
13 Jul 2016
1/^(?!\s*$).+/
Yann
20 Jan 2017
1const REGEXP = /^$/;
2
3const validate = (text) => {     
4    return REGEXP.test(text);
5}
6
7const isEmpty = validate("");
8const isNotEmpty = validate("x");
9
10console.log(isEmpty); //true
11console.log(isNotEmpty); //false
Cathy
28 Mar 2020
1/^$/ // match exactly ""
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