Want to replace string in js

Question

I want to replace ^ to ** in js but we try to use str.replace it only replaces a first one and rest string are same

 const input = "2^3+4^4";
    const replace = input.replace("^", "**");
    console.log(replace);

output :

2**3+4^4

but i want

2**3+4**4

score 3 · Answer 1 · answered Jul 25 '20 at 08:50

3

You can use regex like this:

const input = "2^3+4^4";
const replace = input.replace(/\^/g, "**");
console.log(replace);

answered Jul 25 '20 at 08:50

Jop Knoppers

score 3 · Answer 2 · edited Jul 25 '20 at 09:00

3

You can use regex with flag g which make the regex don't stop to the first occurrence.

const input = '2^3+4^4';

const replace = input.replace(/\^/g, '**');

console.log(replace); // output: 2**3+4**4

edited Jul 25 '20 at 09:00

8HoLoN

answered Jul 25 '20 at 08:50

Eldynn

score 0 · Answer 3 · answered Jul 25 '20 at 08:51

0

const replace = input.replace(/^/g, "**");

answered Jul 25 '20 at 08:51

Avi Ferdman

Won't work, this will simply prepend "**" to any given string. Besides that, please, make a minimal snippet or at least mark your code as code. – Thomas Jul 25 '20 at 09:01

score 0 · Answer 4 · answered Jul 25 '20 at 08:54

0

Try this:

const input = "2^3+4^4";
const replace = input.replace(/\^/g, "**");
console.log(replace);

The /g means it's "global" replacement.

answered Jul 25 '20 at 08:54

Daniser

score 0 · Answer 5 · answered Jul 25 '20 at 08:56

0

const replace = input.split("^").join("**")

answered Jul 25 '20 at 08:56

Indrakant

Please, make a minimal snippet or at least mark your code as code. – Thomas Jul 25 '20 at 09:02

5 Answers5