Removing \ from NSString

Question

I am working on NSString where I am getting this string

 "[  {    \"36\" : 142  }",
        "  {    \"38\" : 149  }",
        "  {    \"39\" : -1  }",
        "  {    \"40\" : -1  }",
        "  {    \"41\" : 163  }",
        "  {    \"42\" : -1  }",
        "  {    \"84\" : 302  }]"

I want to remove all \ from this string.

Thanks in advance.

possible duplicate of [Objective-C - How To Remove Characters From a String?](http://stackoverflow.com/questions/2289928/objective-c-how-to-remove-characters-from-a-string) — MeanGreen, Jul 07 '15 at 06:39
first it is not a string its a dictionary and you have " " in string, first parse your string, then remove \ from individual strings . "stringByReplacingOccurrencesOfString" that doesn't work directly for this — Code cracker, Jul 07 '15 at 06:43
It looks like escaped JSON inside of string literals separated with commas, probably inside of array literal? Could you provide more details on the usage? — Tricertops, Jul 07 '15 at 06:49
Yes I have searched but not found satisfied answer that is why I posted question. — Pradumna Patil, Jul 07 '15 at 06:54
Please write full code where you want to replace the \. Not just a string — V.J., Jul 07 '15 at 07:15

Kumar · Answer 1 · 2015-07-07T06:58:09.283

2

You have to replace '\' character with NULL character.

NSString *newString = [myString stringByReplacingOccurrencesOfString:@"\\" withString:@""];

edited Jul 07 '15 at 06:58

answered Jul 07 '15 at 06:40

Kumar

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Hi did you tried this in a real example...?? I have tried but it is not working... – V.J. Jul 07 '15 at 06:50

etayluz · Answer 2 · 2015-07-07T06:56:21.710

1

Approach One:

string = [string stringByReplacingOccurrencesOfString:@"\\" withString:@""];

Approach Two:

NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];

I'm curious if approach 2 works for parsing the string into a json?

edited Jul 07 '15 at 06:56

answered Jul 07 '15 at 06:43

etayluz

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Approch one contain \" as a string but I want to remove only \ from my string So it does not work for me. – Pradumna Patil Jul 07 '15 at 06:53
I have only single backslash not double backslash so it does not working for me. – Pradumna Patil Jul 07 '15 at 07:03
The double backslash is escaping the single backslash, see more here: http://stackoverflow.com/questions/2931942/nsstring-backslash-escaping – etayluz Jul 07 '15 at 07:07

V.J. · Answer 3 · 2015-07-07T06:57:31.437

1

You need to replace \\ with BLANK SPACE using stringByReplacingOccurrencesOfString method. Below is the example...

NSString *yourString = [yourString stringByReplacingOccurrencesOfString:@"\\" withString:@""];

edited Jul 07 '15 at 06:57

answered Jul 07 '15 at 06:48

V.J.

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Why not simply `"\\"` for `""`? – Tricertops Jul 07 '15 at 06:51
That’s maybe the problem. The question was how to remove backslash. – Tricertops Jul 07 '15 at 06:54
Yup you are right. Just update my answer.. Is it okay now..? – V.J. Jul 07 '15 at 06:55
Almost. Update also the first sentence, now it’s inconsistent. – Tricertops Jul 07 '15 at 06:56
I have only single backslash not double backslash so it does not working for me. – Pradumna Patil Jul 07 '15 at 07:02
Have you tried in the form of code... When you want to assign a Double Quote or BackSlash in the string. You need to write \" for Double Quote and \\ for BackSlash... Understood. – V.J. Jul 07 '15 at 07:04

Removing \ from NSString

3 Answers3