How can I disallow a square bracket in a string when using regex to validate input text

Question

I want to disallow a string that has square brackets when using test method in regex.

 function validateName(name){
    var nameRegex = /^[A-zA-z\s][A-zA-z\s.-]{1,64}$/i;
    console.log('##########Checking validation.........');
    return nameRegex.test(name);
}

Does this answer your question? [Difference between regex \[A-z\] and \[a-zA-Z\]](https://stackoverflow.com/questions/4923380/difference-between-regex-a-z-and-a-za-z), [\[A-z0-9\]+ regexp matching square brackets](https://stackoverflow.com/questions/28449927/a-z0-9-regexp-matching-square-brackets)... It should be [`^[A-Za-z\s][A-Za-z\s.-]{1,64}$`](https://regex101.com/r/sWiQ2i/1) — bobble bubble, Dec 28 '22 at 02:25

Paul Serre · Answer 1 · 2022-12-27T14:01:00.847

1

Try this regex and let me know:

/^[^\[\]]*$/

EDIT:

const regex = /^[^\[\]]*$/;

console.log(regex.test('ok')) // return true
console.log(regex.test('[ok')) // return false
console.log(regex.test('ok]')) // return false

edited Dec 27 '22 at 14:01

answered Dec 27 '22 at 13:43

Paul Serre

457
3
11

It is not working out. function validateName(name){ var nameRegex = /^[A-zA-z\s^\[\]][A-zA-z\s.-]{1,64}$/i; console.log('##########Checking validation.........'); return nameRegex.test(name); } – success kwagala Dec 27 '22 at 13:55
I just tried and it works perfectly... – Paul Serre Dec 27 '22 at 14:01
That's cool. How can include it in this expression: /^[A-zA-z\s][A-zA-z\s.-]{1,64}$/i – success kwagala Dec 27 '22 at 14:17
Tell me what you want to do with your regex – Paul Serre Dec 27 '22 at 16:21
I finally got a simpler regex: /^[a-zA-Z\s]/. At first I was using /^[A-zA-z]$/ which included all symbols with char code 91-96 yet I didn't what them to be matched. Thanks for all efforts. – success kwagala Dec 29 '22 at 06:34

How can I disallow a square bracket in a string when using regex to validate input text

1 Answers1