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javascriptjquerystringsplit
Changez Khan
Changez Khan

Reputation: 51

How to remove a specific section of a string after the last occurrence of a specific character?

I have one string 

"Opportunity >> Source = Email >> Status = New >> Branch = Mumbai"

Now, I want to chop off above string from last occurrence of >>. I mean, I want the result string should be like this

"Opportunity >> Source = Email >> Status = New"

Now, I am using various jquery/javascript functions like split(), reverse(), join(), indexOf() to remove the rest of the string from the last occurrence of >>, like this

var test = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai";
var count = test.split("").reverse().join("").indexOf('>>');
var string = test.substring(0, test.length - count-2);

Using this, I am able to get the desired result. But I assume there must be some other easier way than this to achieve this using jquery/javascript.

Upvotes: 0

Views: 316

Answers (7)

Mohammad
Mohammad

Reputation: 21499

You can use regex in .replace() to removing extra part of string. Regex select last part of string (>> Branch = Mumbai) and repalace it with empty. You can see it in demo

var text = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai";
console.log(text.replace(/>>[^>]+$/g, ""));

Upvotes: 0

fdomn-m
fdomn-m

Reputation: 28621

One more option: use pop()

var src = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai"

var arr = src.split(">>");
arr.pop();
var s = arr.join(">>");

Upvotes: 0

gurvinder372
gurvinder372

Reputation: 68433

You can simply use lastIndexOf method of String

var input = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai";

console.log( input.substring(0, input.lastIndexOf( ">>" )) )

Upvotes: 2

Milind Anantwar
Milind Anantwar

Reputation: 82251

You can get the lastindex of >> and then get substring from beginning of string to last position of element >> in it :

var str = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai"
 var lastindex = str.lastIndexOf(">>");
 if (lastindex  != -1){
    alert(str.substring(0, lastindex-1 )); 
 }

Upvotes: 1

pid
pid

Reputation: 11607

You can splice it off:

var arr = test.split(">>");
arr = arr.splice(arr.length - 1, 1);
string = test.join(">>");

Upvotes: 0

ilkerkaran
ilkerkaran

Reputation: 4364

Javascript has lastIndexOf() method . You can find last occurance with it. Then remove rest of the string easily. Example: 

var test = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai";
var finIndex = test.lastIndexOf('>>');
var string = test.substring(0, finIndex);

You can check link here

Upvotes: 0

Ismail RBOUH
Ismail RBOUH

Reputation: 10470

Please try this:

"Opportunity >> Source = Email >> Status = New >> Branch = Mumbai".split(" >> ").slice(0, -1).join(" >> ")


var str = "Opportunity >> Source = Email >> Status = New >> Branch = Mumbai";
console.log(str.split(" >> ").slice(0, -1).join(" >> "));

Upvotes: 3

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