Parse text and get value

Question

I have many links:

var one = '/news/local/edit?user=marcus&owner=ffff';
var two = '/news/other/edit?user=josh&owner=ddd';
var three = '/news/local/edit?user=john';
var four = '/news/local/test/marcus/edit?owner=aaaa&user=ady';

How can I get from these links the value of user?

This should return:

one = 'marcus';
two = 'josh';
three = 'john';
four = 'ady';

The result can be in an array.

Where are you getting these links? Are they hard-coded strings in your code, or are they part of the `scr=` attribute in anchor tags, or ? — cssyphus, Oct 07 '13 at 18:20
You can change the function found [here](http://stackoverflow.com/questions/979975/how-to-get-the-value-from-url-parameter) to look at your variables instead of `window.location.search`. — bfavaretto, Oct 07 '13 at 18:29

score 0 · Answer 1 · answered Oct 07 '13 at 18:19

0

Or, more failsafe:

var str = '/news/local/edit?user=marcus&owner=ffff';
var one = str.split('user=')[1].split('&')[0];

answered Oct 07 '13 at 18:19

Alex

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score 0 · Answer 2 · answered Oct 07 '13 at 18:22

0

Or by searching and not spliting.

var capture = one.substring(one.indexOf("user=")+5);
var one = capture.substring(0, capture.indexOf("&"));

answered Oct 07 '13 at 18:22

Orel Eraki

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score 0 · Answer 3 · answered Oct 07 '13 at 18:22

0

Try this

one = one.replace(/.*?user\=([a-zA-Z0-9]*)\&*.*/g, '$1')
two = two.replace(/.*?user\=([a-zA-Z0-9]*)\&*.*/g, '$1')
three = three.replace(/.*?user\=([a-zA-Z0-9]*)\&*.*/g, '$1')

answered Oct 07 '13 at 18:22

emotionull

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score 0 · Answer 4 · answered Oct 07 '13 at 18:22

0

An alternative could be:

'/asd/?user=andy&algo=mas'.replace(/^.+user=([^\&]+).+$/, '$1') // returns 'andy'

answered Oct 07 '13 at 18:22

Andrés Torres

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score 0 · Accepted Answer · edited Jun 20 '20 at 09:12

You can use a regular expression to extract the query string parameters. Please refer the below question.

How can I get query string values in JavaScript?

sample fiddle

related code from the answer edited according to the context here:

function getParameterByName(name,url) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
        results = regex.exec(url);
    return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}

var one = '/news/local/edit?user=marcus&owner=ffff';
var two = '/news/other/edit?user=josh&owner=ddd';
var three = '/news/local/edit?user=john';
var four = '/news/local/test/marcus/edit?user=ady&owner=aaaa';

alert(getParameterByName("user",one));
alert(getParameterByName("user",two));
alert(getParameterByName("user",three));
alert(getParameterByName("user",four));

score 0 · Answer 6 · answered Oct 07 '13 at 18:22

0

This parser may do it for you ;)

function parseUser(str){
  var firstPart = str.substr(str.indexOf('user=') + 5); // +5 because the length of 'user='
  if(str.indexOf('&') !== -1)
    return firstPart.substr(0, firstPart.indexOf('&'));
  else
    return firstPart;
}

answered Oct 07 '13 at 18:22

seniorpreacher

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If you wish to use it other then 'user', be aware the length in the 2nd line! – seniorpreacher Oct 07 '13 at 18:24

score 0 · Answer 7 · answered Oct 07 '13 at 18:24

0

You can use this Regular expression to capture the user:

var one = '/news/local/edit?user=marcus&owner=ffff';

var userOne = /user=([^&]+)/.exec(one)[1]

answered Oct 07 '13 at 18:24

levi

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score 0 · Answer 8 · edited May 23 '17 at 11:57

from here https://stackoverflow.com/a/901144/1113766 with just a small modification to receive as parameter the string were you want to look for the value.

function getParameterByName(name, path) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
        results = regex.exec(path);
    return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}

http://jsfiddle.net/tjdragon/T62T2/

Parse text and get value

8 Answers8

related code from the answer edited according to the context here: