How to remove strings and special characters from string and show only numbers without comma using regex?

Question

In My case I am using react native typescript, I want to get only numbers from group string without comma. How to get it using regex match or replace?

 taskname = TASK_XC0.0.0.0.89t_abc_test
 let task = taskname.match( /[0-9]+/g, ''); //0,0,0,0,89 

Actual output need to get 000089

Answer 1

 let str = "TASK_XC0.0.0.0.89t_abc_test" console.log(str.replace(/[^0-9]/g,''))

Answer 2

use join method to remove comma

const taskName = 'TASK_XC0.0.0.0.89t_abc_test'
const task = taskName.match(/[0-9]+/g, '').join('');

output: 000089