How to remove an array value from a string in Javascript

Question

Straight forward, How to remove an array value from a string, Example:

var String = "Hi my name is ftk: [2] what is yours? [ And how are 2 5 you? [1] Are you ok?"
var array = [ "[1]", "[2]" ]

---OUTPUT---

"Hi my name is ftk: what is yours? [ and how are 2 5 you? Are you ok?"

Basically I want to remove a specific array and only when it's exactly the same word, If it makes sense.

I have tried .replace with global, But I couldn't use an array there, I can only input a specific string like:

var string2 = string.replace(/\[1|\]/g, '');

See above, I can't remove 2 words at the same time, And it would really suck to manually create a new var to it eachtime I add a specific word to remove, So an Array would be the best.

Thanks in Advance.

Adam Pearson · Accepted Answer · 2023-01-10 15:56:01Z

2

You can just loop through your array, replacing each array item as you go:

let string = "Hi my name is ftk: [2] what is yours? [ And how are 2 5 you? [1] Are you ok?"
let array = [ "[1]", "[2]" ]


for (let i = 0; i < array.length; i++) {
    string = string.replace(array[i], '');
}

console.log(string);

answered Jan 10, 2023 at 15:56

Adam Pearson

4042 silver badges9 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

The fourth bird · Accepted Answer · 2023-01-10 16:07:16Z

1

You might use a character class to define multiple matches to remove. Then in the callback of replace, check if the match occurs in the array.

\[[12]]

Example

var string2 = string.replace(/\[[12]]/g, '');

var string = "[3] Hi my name is ftk: [2][2] what is yours? [ And how are 2 5 you? [1] Are you ok?"
var array = ["[1]", "[2]"];
var string2 = string.replace(
  /\[[12]]/g,
  m => array.includes(m) ? '' : m
);
console.log(string2);

edited Jan 10, 2023 at 16:07

answered Jan 10, 2023 at 15:44

The fourth bird

165k16 gold badges61 silver badges75 bronze badges

4 Comments

The fourth bird Over a year ago

@ftk789 I have updated the code with a check for the matched value in the array.

Adam Pearson Over a year ago

Your code is leaving some square brackets in, the OP seemed to want to remove exactly what was in his array (including the brackets)

ftk789 Over a year ago

@AdamPearson Exactly what i wanted, But Thank you very much for the answer as well, I appreciate it.

The fourth bird Over a year ago

@AdamPearson Ow yes, the match should not be indexed.

Collectives™ on Stack Overflow

How to remove an array value from a string in Javascript

2 Answers 2

Comments

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related