Javascript Regex to limit Text Field to only Numbers and only10 or 12 digits

Question

i want a javascript regex for my input that accept only numbers with 10 or 12 digits. forexample:

1234567890 => True

a12345678u =>False

123456789123 =>True

sj231@ => False

aq123456789t =>False

i very very appreciate if any one can help me.

Spectric · Accepted Answer · 2021-08-07 16:59:45Z

3

Try: [0-9]{10}([0-9]{2})?

const regex = new RegExp("[0-9]{10}([0-9]{2})?");

console.log(regex.test('1234567890'));
console.log(regex.test('a12345678u'));
console.log(regex.test('123456789123'));
console.log(regex.test('sj231@'));
console.log(regex.test('aq123456789t'));

regex101 explanation:

answered Aug 7, 2021 at 16:59

Spectric

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