Check if string ends with

Question

I want to check if a string ends with

- v{number}

So for example

hello world           false
hello world - v2      true
hello w         


        

Answer 1

Just use this without checking anything else in the beginning

- v\d+$

This way you make sure it ends with - v followed by at least one digit. See it live in https://regex101.com/r/pB6vP5/1

Then, your expression needs to be:

var patt = new RegExp("- v\\d+$");

As stated by anubhava in another answer:

• No need for /
• Requires double escaping for \d.

var str = 'hello world - v15';
var patt = new RegExp("- v\\d+$");
var res = patt.test(str);
console.log(res);