Javascript replace not working in array string element

Asked Feb 07 '20 at 16:23

Active Feb 07 '20 at 16:25

Viewed 35 times

Here my array :

let model = ["xxx","xxx"];

I want to replace the second 'x' in the string of the second element of the array by 'o'.

I tried this :

let model = ["xxx", "xxx"];

console.log(model[1][2])
// -> output : x -> OK

model[1][2] = model[1][2].replace('x', 'o')

console.log(model);
// -> output : ["xxx", "xxx"] -> ???

I tried this too :

let model = ["xxx", "xxx"];

console.log(model[1][2])
// -> output : x

model[1][2] = 'o'

console.log(model);
// -> output : ["xxx", "xxx"]

Why is not working ? Thank you !

edited Feb 07 '20 at 16:25

Calvin Nunes

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asked Feb 07 '20 at 16:23

Tony S

replace method expects a regexp as it's first parameter. – Pierre Feb 07 '20 at 16:25
I got the same result with model[1][2] = 'o' @GhoulAhmed – Tony S Feb 07 '20 at 16:26
@Pierre it also accept string, not necessarly only regex – Calvin Nunes Feb 07 '20 at 16:28
that's not how you alter a string. – Kevin B Feb 07 '20 at 16:28
2

strings are in their very nature immutable. You have to update `model[1]` with the changed string. You can not just change one character in a string. – Thomas Feb 07 '20 at 16:28
3

Why do all the comments keep disappearing from this thread? You would need to replace the entire string using something like this: https://stackoverflow.com/questions/1431094/how-do-i-replace-a-character-at-a-particular-index-in-javascript – Turnip Feb 07 '20 at 16:30
1

Thank's for your help ! – Tony S Feb 07 '20 at 16:36

Javascript replace not working in array string element

0 Answers0