Javascript String Replace

Question

I have a string that I would like to replace certain values with empty string. My string is:

"col1=,,,&col2=,&col3=,,&item5,item8,"

I am trying to replace ",,," with ""

I have tried the following and had no joy, does anyone have any ideas what the best way to achieve this is?

var string = "col1=,,,&col2=,&col3=,,&item5,item8,"; var NewCookie = ""; NewCookie = string.replace(",,", ","); NewCookie = NewCookie.replace(',,,', ','); NewCookie = NewCookie.replace(',,&', ','); alert(NewCookie);

Thanks

&item5,item8 isn't a valid query string. Can you clarify what format you want? — Gary Green
– Gary Green, Commented Sep 9, 2011 at 10:08

Andrew D. · Accepted Answer · 2011-09-09 16:00:23Z

Try this:

var result = "col1=,,,&col2=,&col3=,,&item5,item8,".replace(/,+&?/g,',');

Result string is: "col1=,col2=,col3=,item5,item8,"

or

var result = "col1=,,,&col2=,&col3=,,&item5,item8,".replace(/=?,+&?/g,'=&');

Result string is: "col1=&col2=&col3=&item5=&item8=&"

or

var result = "col1=,,,&col2=,&col3=,,&item5,item8,".replace(/,+/g,',');

Result string is: "col1=,&col2=,&col3=,&item5,item8,"

expertCode · Accepted Answer · 2011-09-09 10:41:33Z

Try this function:

function RemoveConsecutiveCharacter(str, character){ var newStr = ""; $.each(str, function(index){ if(str[index] != character || str[index-1] != character){ newStr += str[index]; } }); return newStr; }

See an example here: http://jsfiddle.net/expertCode/6naAB/

Andy · Accepted Answer · 2011-09-09 10:01:56Z

this works for me:

alert( ("col1=,,,&col2=,&col3=,,&item5,item8,").replace(',,,',',') );

edit: ah you set NewCookie to "" then you want to replace something in NewCookie (which is "") in example 2 and 3. you have to set var NewCookie = string; in your example.
or do

var NewCookie = string.replace(',,,',',');

Curtis · Accepted Answer · 2011-09-09 10:01:59Z

You are replacing ",," to "," which results in:

"col1=,,&col2=,&col3=,&item5,item8,"

Therefore, when you do:

NewCookie = NewCookie.replace(',,,', ',');

there are no longer any ",,,"

Try rearranging your replace functions:

NewCookie = string.replace(',,,', ','); NewCookie = NewCookie.replace(",,", ","); NewCookie = NewCookie.replace(',&', ',');

MozenRath · Accepted Answer · 2012-11-29 04:45:24Z

-1

while(str.indexOf(",,")!=-1){ str = str.replace(",,",","); }

edited Nov 29, 2012 at 4:45

answered Nov 26, 2012 at 12:40

MozenRath

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