How to Remove double backslashes in a string to Single one?

Question

My string is tel:\\99999999999. How i can replace '\' to '\' single? I want output like: tel:\99999999999.

Please see attached image backslashes not showing into question.

@CarstenLøvboAndersen more like `str.replace('\\\\', '\\')` — Tom Doodler, Jun 28 '17 at 10:45

score 3 · Answer 1 · answered Jun 28 '17 at 10:45

3

You should escape the slash twice:

"tel:\\99999999999".replace('\\\\', '\\');

answered Jun 28 '17 at 10:45

Poul Kruijt

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I think you should write four slashes in the string: `"tel:\\\\99999999999"` – Washington Guedes Jun 28 '17 at 10:52
@WashingtonGuedes Why? – Carsten Løvbo Andersen Jun 28 '17 at 10:53
@WashingtonGuedes No it's not necessary, the string will be automatically escaped by the the JS engine. – cнŝdk Jun 28 '17 at 10:53
Because if you paste `"tel:\\99999999999"` into the console, it just shows one slash, making your replace unnecessary – Washington Guedes Jun 28 '17 at 10:54
It would only make sense to have two slashes if `"tel:\\99999999999"` was an `` value and you retrieve it like `input.value.replace(...` – Washington Guedes Jun 28 '17 at 10:56

Carsten Løvbo Andersen · Answer 2 · 2017-06-28T10:49:56.100

0

use .replace() to achieve what you want, str.replace("\\\\","\\")

var str = "tel:\\99999999999";

console.log(str.replace("\\\\","\\"))

edited Jun 28 '17 at 10:49

answered Jun 28 '17 at 10:47

Carsten Løvbo Andersen

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If you `console.log(tel)` before the replace it still works – Washington Guedes Jun 28 '17 at 10:48
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This answer has already been posted, and why do you include jquery?? – Denny Jun 28 '17 at 10:48
@Denny When I started to write the answer it was not posted, so that's why I made it, And the reason I included jquery is that it started with a jquery tag, so that's why. And if you look then I wrote the answer first in the comment, then I wanted to include it as an actual Answer. Please check the facts before – Carsten Løvbo Andersen Jun 28 '17 at 10:49

score 0 · Answer 3 · answered Jun 28 '17 at 10:47

You can simply use tel.replace(/\\\\/g, "\\").

Demo:

var tel ="\\99999999999";

console.log(tel.replace(/\\\\/g, "\\"));

You need to escape the \ character with another \, because it's an escape character in JavaScript, you can check JavaScript backslash (\) in variables is causing an error for further reading.

score -2 · Answer 4 · answered Jun 28 '17 at 10:45

-2

You can do like this

"tel:\\99999999999".replace('\\\\', '');

answered Jun 28 '17 at 10:45

Ankit Agarwal

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Just do not down vote without running it. Open your browser console and copy paste that code and hit enter. You will know well. – Ankit Agarwal Jun 28 '17 at 10:53
@Denny Aka is right, it does give the right result as it should. You seem to comment on a a lot without checking the facts first. – Carsten Løvbo Andersen Jun 28 '17 at 10:55
Yes, @CarstenLøvboAndersen you are right. Such person should be blocked by stackoverflow. – Ankit Agarwal Jun 28 '17 at 10:56
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@AKA I don't agree that he should be blocked, he should just think abit more before posting – Carsten Løvbo Andersen Jun 28 '17 at 10:57
@CarstenLøvboAndersen yeah, that is really true words from you. – Ankit Agarwal Jun 28 '17 at 10:58
@AKA Thanks, but in general I agree with him, he also jump to my answer and said that it been posted before, true, but I wrote the answer in the comment first and at that time there were no answers so I wanted to make one. when I posted the answer there were other answers then. So he's too fast. – Carsten Løvbo Andersen Jun 28 '17 at 11:00
Yes @CarstenLøvboAndersen we need to be pretty quick while adding answers as there are lot of them posting answers simultaneously. So eventually it ended up being duplicate answers. – Ankit Agarwal Jun 28 '17 at 11:01
@AKA any, i upvoted your answer to make the voting right again, Good day to you – Carsten Løvbo Andersen Jun 28 '17 at 11:02
My bad, had a bad day and wasn't thinking clearly, I apologize for my ignorance – Denny Jun 29 '17 at 06:57
Please remove the down vote and if possible make an up vote – Ankit Agarwal Jun 29 '17 at 06:59

How to Remove double backslashes in a string to Single one?

4 Answers4