Creating an object out of a string in javascript

Question

I have a string:

var str = "username:joe_1987;password:123456;email:joe@mailmail.com;"

Can I (or rather,) how can I create an object out of in a way that I can call it's parameters, something like:

alert(obj.password) and get 123456

You can start by something like this http://stackoverflow.com/a/13419367/2479028 — Ramy Nasr, Aug 26 '16 at 15:14
Possible duplicate of [Parse query string in JavaScript](http://stackoverflow.com/questions/2090551/parse-query-string-in-javascript) — Arnav Borborah, Aug 26 '16 at 15:53

score 2 · Answer 1 · answered Aug 26 '16 at 15:18

I'm no expert, but something like this should work:

string = 'username:joe_1987;password:123456;email:joe@mailmail.com;';

array = string.split(';');
object = {};

for(i=0;i<array.length;i++){
    if(array[i] !== ''){
        console.log(array[i]);
        object[array[i].split(':')[0]] = array[i].split(':')[1];
    }
}

console.log(object);

https://jsfiddle.net/oej2gznw/

score 2 · Accepted Answer · answered Aug 26 '16 at 15:20

I would recommend splitting on the semicolons in the string, giving you an array that will look like:

["username:joe_1987", "password:123456", "email:joe@mailmail.com"]

You can then apply the same idea to each element of this array, and then create the object. I've chucked a snippet below to explain:

var str = "username:joe_1987;password:123456;email:joe@mailmail.com;"

var splitBySemiColon = str.split(";");
splitBySemiColon.pop(); //Remove the last element because it will be ""

var obj = {};

for(elem in splitBySemiColon) {
    splitByColon = splitBySemiColon[elem].split(":");
    obj[splitByColon[0]] = splitByColon[1];
}

Hope this helps!

EDIT: Provided a live demo for you - https://repl.it/CtK8

score 0 · Answer 3 · answered Aug 26 '16 at 15:21

IF you're certain the desired values won't have ; or :, you can just

var str = "username:joe_1987;password:123456;email:joe@mailmail.com;"
var obj = {};
str.split(';').forEach( function(segm) {
  if(segm.trim()) { // ignore empty string
    var spl = segm.split(':');
    obj[ spl[0] ] = spl[1];
  }
})

score 0 · Answer 4 · answered Aug 26 '16 at 15:24

0

use this

 var str = "username:joe_1987;password:123456;email:joe@mailmail.com;"
    var data=str.split(';');
    var obj={};
    for(var i=0;i<data.length;i++){
      var propArray=data[i].split(':');
       obj[propArray[0]]=propArray[1]
    }

answered Aug 26 '16 at 15:24

MAREESKANNNAN RAJENDRAN

517
5
17

score 0 · Answer 5 · answered Aug 26 '16 at 15:33

There is no straight way. Just parse that string. For example:

var str = "username:joe_1987;password:123456;email:joe@mailmail.com;"

var arr = str.split(';');
var o = {};
for (a in arr) {
  if (arr[a]) {
    o[arr[a].split(':')[0]]=arr[a].split(':')[1];
  }
}

console.log(o);

Creating an object out of a string in javascript

5 Answers5