Remove two same string from a string

Question

var string = "user1,user2,user1,user3,user4,user1,";

I want to remove all 'user1,' from the string but by 'replace' method I can just remove one of them.

duplicate of [JavaScript .replace doesn't replace all occurrences](http://stackoverflow.com/q/12729449/218196) — Felix Kling, Nov 27 '13 at 06:05
possible duplicate of [Javascript multiple replace](http://stackoverflow.com/questions/832257/javascript-multiple-replace) — Danubian Sailor, Nov 27 '13 at 07:29

Vijay · Answer 1 · 2013-11-27T05:47:42.393

2

try out this..

    var string = "user1,user2,user1,user3,user4,user1,";
    string.replace(/user1,/g, '');
    alert('string .. '+string);

edited Nov 27 '13 at 05:47

answered Nov 27 '13 at 05:28

Vijay

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`replaceAll` is of jquery's! – Nov 27 '13 at 05:33
It seems there is no 'replaceAll' method in the javascript library. How can I use it? – Sponge Bob Nov 27 '13 at 05:34
`@Sponge Bob` please find edited answer... – Vijay Nov 27 '13 at 05:38
I'd use `/\buser1,/g` so `"luser1,"` would be left untouched. – Kijewski Nov 27 '13 at 06:03

score 2 · Answer 2 · answered Nov 27 '13 at 05:36

2

http://jsfiddle.net/79DgJ/

 var str= "user1,user2,user1,user3,user4,user1,";
 str = str.replace(/user1,/g, '');  //replaces all 'user1,'

answered Nov 27 '13 at 05:36

How can I replace /user1,/ with a variable? – Sponge Bob Nov 27 '13 at 05:52

score 2 · Answer 3 · answered Nov 27 '13 at 05:42

2

First parameter replace method can be regular expression. Use option 'g' for replace all matches.

var string = "user1,user2,user1,user3,user4,user1,";

string = string.replace(/user1,/g, '');

answered Nov 27 '13 at 05:42

Boris Kirov

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Thanks a lot. Now I want to use a variable instead of /user1,/ just like this: string.replace(/users+','/g, ''); – Sponge Bob Nov 27 '13 at 05:45
1

Use: `var number = 1, userRegExp = new RegExp('user' + number, 'g'); string = string.replace(userRegExp, '');` – Boris Kirov Nov 27 '13 at 05:52

rajesh kakawat · Accepted Answer · 2013-11-27T05:52:29.457

2

use regexp

 var string = "user1,user2,user1,user3,user4,user1,";
 string.replace(/user1/g, '');

EDITED CODE

    var string = "user1,user2,user1,user3,user4,user1,";
    var find = 'user1';
    var re = new RegExp(find, 'g');
    string = string.replace(re, '');

edited Nov 27 '13 at 05:52

answered Nov 27 '13 at 05:42

rajesh kakawat

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That sounds very well. I'm sorry I can't give you more than 1 point. (THIS IS MY ANSWER.) – Sponge Bob Nov 27 '13 at 05:59

score 2 · Answer 5 · answered Nov 27 '13 at 05:45

2

try this, split the string, get the array, filter it to remove duplicate items, join them back.

var uniqueList=string.split(',').filter(function(item,i,allItems){
    return i==allItems.indexOf(item);
}).join(',');

Fiddle

answered Nov 27 '13 at 05:45

Zeeshan

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Well, that's fine but a little complicated. – Sponge Bob Nov 27 '13 at 05:49

Remove two same string from a string

5 Answers5