How can I get query string parameter in Javascript or jQuery?

jquery get query string parameter
javascript get query string value from url
jquery get query string value from url
javascript get all url parameters
jquery get url parameters
javascript get url parameter w3schools
javascript get url parameter value by name
get query string in javascript on page load

I have a link like this:

http://localhost:8162/UI/Link2.aspx?txt_temp=123abc

I want to get the value 123abc . I have followed this How can I get query string values in JavaScript? and jquery get querystring from URL

$(document).ready(function () {
    function getUrlVars() {
        var vars = [], hash;
        var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
        for (var i = 0; i < hashes.length; i++) {
            hash = hashes[i].split('=');
            vars.push(hash[0]);
            vars[hash[0]] = hash[1];
        }
        return vars;
    }
    function getParameterByName(name) {
        name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
        var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
        results = regex.exec(location.search);
        return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
    }
    onload = function () {
        alert(getParameterByName('txt_temp'));
        alert(getUrlVars()["txt_temp"]);
    }  
});

But it does not work.


Suppose you have URL with many params eg:-

"http://localhost:8162/UI/Link2.aspx?txt_temp=123abc&a=1&b=2"

Then in js you can do like:

var url = "http://localhost:8162/UI/Link2.aspx?txt_temp=123abc&a=1&b=2"

OR

var url = window.location.href

then split main url like:

hashes = url.split("?")[1]

//hashes holds this output "txt_temp=123abc&a=1&b=2"

Then again you can split by & to get individual param

EDIT

Check this example:

function getUrlVars() {
var url = "http://localhost:8162/UI/Link2.aspx?txt_temp=123abc&a=1&b=2";
var vars = {};
var hashes = url.split("?")[1];
var hash = hashes.split('&');

for (var i = 0; i < hash.length; i++) {
params=hash[i].split("=");
vars[params[0]] = params[1];
}
return vars;
}

Output

getUrlVars()
Object {txt_temp: "123abc", a: "1", b: "2"}

Get url parameter jquery Or How to Get Query String Values In js , Best solution here. var getUrlParameter = function getUrlParameter(sParam) { var sPageURL = window.location.search.substring(1), sURLVariables  JavaScript Fallback. While URLSearchParams is ideal, not all browsers support that API. There's a polyfill available but if you want a tiny function for basic query string parsing, the following is a function stolen from the A-Frame VR toolkit which parses the query string to get the key's value you'd like:


It doesn't work because you're running the functions inside of onload, which doesn't fire inside of document.ready, because by the time the code inside of document.ready executes, onload has already fired. Just get your code out of the onload event:

http://jsfiddle.net/whp9hnsk/1/

$(document).ready(function() {

   // Remove this, this is only for testing.
   history.pushState(null, null, '/UI/Link2.aspx?txt_temp=123abc');

   function getUrlVars() {
       var vars = [],
           hash;
       var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
       for (var i = 0; i < hashes.length; i++) {
           hash = hashes[i].split('=');
           vars.push(hash[0]);
           vars[hash[0]] = hash[1];
       }
       return vars;
   }

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

   // You may also place this inside of a function,
   // and execute it when you desire, but `onload` is not going
   // to fire by itself, when inside of document.ready
   alert(getParameterByName('txt_temp'));
   alert(getUrlVars()["txt_temp"]);

});

Get Query String Parameters with JavaScript, Not only do we grab parameter values but we also modify them dynamically with the History API, so these parameters play a major role outside  The URLSearchParams provides an interface to work with query string parameters; The URLSearchParams is an iterable so you can use the forof construct to iterate over query string parameters. The has() method of the URLSearchParams determines if a parameter with a specified name exists.


This should get you started:

function parseQueryStr( str, obj ) {


    // Return object
    obj = obj || {};


    // Looping through our key/values
    var keyvalues = str.split('&');
    for( var i=0; i<keyvalues.length; i++ ) {


        // Break apart our key/value
        var sides = keyvalues[i].split( '=' );


        // Valid propery name
        if( sides[0] != '' ) {


            // Decoding our components
            sides[0] = decodeURIComponent( sides[0] );
            sides[1] = decodeURIComponent( sides.splice( 1, sides.length-1 ).join( '=' ) );


            // If we have an array to deal with
            if( sides[0].substring( sides[0].length - 2 ) == '[]' ) {
                var arrayName = sides[0].substring( 0, sides[0].length - 2 );
                obj[ arrayName  ] = obj[ arrayName  ] || [];
                obj[ arrayName ].push( sides[1] );
            }


            // Single property (will overwrite)
            else {
                obj[ sides[0] ] = sides[1];
            }
        }
    }


    // Returning the query object
    return obj;
}

var href = window.location.href.split('#');
var query = href[0].split('?');
query.splice(0,1);
var get = parseQueryStr(query.join('?'));

alert( get.txt_temp );

jQuery.param(), As of jQuery 1.4, the $.param() method serializes deep objects recursively to We can display a query string representation of an object and a URI-decoded version of the same <script src="https://code.jquery.com/jquery-3.5.0.js"></​script>. This assumes you have a query string parameter of name. Notice that this is an array, since you can have multiple parameters with the same name in the query string. This lets us get a query string parameter, but it's limited in many ways, and requires a lot of custom work for additional functionality.


You can use:

    var param = new URLSearchParams(urlString).get('theParamName');

Or if searching the current page:

    var param = new URLSearchParams(location.search).get('theParamName');

Read QueryString parameters in jQuery, This article will illustrate how to parse the URL of the page and then extract the QueryString parameter values using JavaScript and jQuery. To get query string parameters in JavaScript,use JavaScript split() function.Further using JavaScript regular expression we can get parameters in key value pair. Take an example of sample url https://www.arungudelli.com?param1=1&param2=--2 the query string parameter in the given url is ?param1=1&param2=2.


you have to slice the everything before and after "=" so first answer is a bit incomplete. Here is the answer which works for querystrings includes "=" in it too :) Like:

https://localhost:5071/login?returnUrl=/writer/user?id=315&name=john

Thanks to user abhi

var getUrlVars = function () {
        var vars = [], hash;
        var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
        for (var i = 0; i < hashes.length; i++) {
            hash = hashes[i].split('=');
            vars.push(hash[0]); //to get name before =
            vars[hash[0]] = hashes[i].slice(hashes[i].indexOf('=') + 1); //to take everything after first =
        }
        return vars;
    }

and then get it with

var url = window.getUrlVars()["returnUrl"];

so it will extract "/writer/user?id=315" with "=" too :)

How to Get Query String Parameters from URL using JavaScript , Get query string from URL with JavaScript - Use location.search to get query string parameters in JavaScript. URLSearchParams object helps  Generally, server-side language is used to get query string from URL. But you can also get query string parameters from URL to client-side. The query string parameters and values can be easily retrieved from the URL using JavaScript. The location search property in JavaScript returns the query string part of a URL.


Get Values From Query String Using jQuery, This article explains how to get values from a query string using jQuery. in the URL, but what to do if you need to use the data in your JavaScript/jQuery code? With vanilla JavaScript, you could easily take the params (location.search), get the substring (without the ?) and turn it into an array, by splitting it by '&'. As you iterate through urlParams, you could then split the string again with '=' and add it to the 'params' object as object[elmement[0]] = element[1].


jQuery param() Method, The serialized values can be used in the URL query string when making an AJAX request. Syntax. $.param(object,trad). Parameter, Description. object, Required. Instead, you can try something like this: /** * Accepts either a URL or querystring and returns an object associating * each querystring parameter to its value. * * Returns an empty object if no querystring parameters found.


Get Query String Parameter Values From URL Using JavaScript , We can get query string parameters in JavaScript without using 3rd party js like jQuery etc by using. Simple JavaScript code; ECMAScript 6  This article explains how to get values from a query string using jQuery. This article explains how to get values from a query string using jQuery. We often use a query string to send some type of information from one page to another page, but in most cases we use C# code to fetch the data from the query string in the URL, but what to do if you