read particular number from a expression

Question

I am trying to read a particular number from an expression.

I want to read the digit from below expression.

ID:jv.link.weight:234231

in the above string, I want to read the number 234231 using typescript.

can anyone suggest me any logic how to read this? I am new to typescript.

Possible duplicate of [Extract ("get") a number from a string](https://stackoverflow.com/questions/10003683/extract-get-a-number-from-a-string) — Roberto Zvjerković, May 08 '19 at 09:47

Seba Cherian · Accepted Answer · 2019-05-08T10:08:58.473

0

Try this:

getNumber(str) { 
    let number = str.replace(/[^0-9]/g, ''); 
    return number;
}

edited May 08 '19 at 10:08

answered May 08 '19 at 09:50

Seba Cherian

in typescript, it is giving an error that .replace is not a function. – Jayesh Vyas May 08 '19 at 10:04
its working for me. pass your string as parameter to getNumber.It will return 234231 – Seba Cherian May 08 '19 at 10:08

score 0 · Answer 2 · answered May 08 '19 at 09:54

0

Use a regex with string.match():

const expression = "ID:jv.link.weight:234231";
expression.match(/(\d+)/g)[0]

Which will return 234231

answered May 08 '19 at 09:54

liamgbs

in typescript, it is giving an error that .match is not a function – Jayesh Vyas May 08 '19 at 10:04

2 Answers2