regex match number
For matching an integer number of one single char/digit, specify:
[0-9]
But for matching any number of more than one char/digit; add "+":
[0-9]+
Example for matching hour with minutes of HH:MM format in a file:
grep "[0-9]+:[0-9]+" file.txtregex for numbers
Regex regex = new Regex(@"^d$");regex get number from string
const regex = /(12345)/gm;
const string = 'My id is 12345.';
console.log(string.replace(regex, '54321')) // My id is 54321.Copyright © 2021 Codeinu
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