JavaScript string replacement

You can do x.replace(y, ""). For more information, see the Mozilla docs.

Do you mean like this?

var arr = "1,2,1,2,3".split(",");
var arr2 = [];
for(var i = 0; i < arr.length; i++) {
 if(arr[i] != "1") arr2.push(arr[i])
}
arr2.join(","); // "2,2,3"

Assuming your removing 'y' where y is an index, do this:

x = x.split(',').splice(y,1).join(',');

Edit:

In that case, I would use regex. If you wish to avoid regex, another solution is available:

while(x.indexOf(y) >= 0){
 x.replace(y+',', '');
}

EDIT: Added a trailing comma to the replace, such that the list remains a comma delimited list.

str_replace analogon from phpjs.org: http://phpjs.org/functions/str_replace:527

So you could use something like x=str_replace(y, '', x); ;) Or implement it yourself by using regexp!

Edit: Okay I think I got it wrong. Probably Greg's answer is the right one :-)

There are three things to check for

1. y at the beginning of the string and followed by a comma
2. y preceeded by a word break and followed by a comma

3. y at the end of the string and preceeded by a comma

   x.replace(new RegExp('((^|\\b)' + y + ',|,' + y +'$)'),'');
   

• javascript