How can I get the query string parameter in Javascript or jQuery?
I have a link like this:
http://localhost:8162/UI/Link2.aspx?txt_temp=123abc
I want to get the value 123abc
. I followed this How to 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 that won't work.
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Suppose you have url with many parameters like: -
"http://localhost:8162/UI/Link2.aspx?txt_temp=123abc&a=1&b=2"
Then in js you can do like this:
var url = "http://localhost:8162/UI/Link2.aspx?txt_temp=123abc&a=1&b=2"
OR
var url = window.location.href
then split the main url like:
hashes = url.split("?")[1]
// hashes contain this output "txt_temp = 123abc & a = 1 & b = 2"
Then you can split by & to get the individual parameter
EDIT
Check out 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"}
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This does not work because you are executing functions inside onload
, which does not run inside document.ready
, because by the time the code is executed inside document.ready
, it is onload
already fired. Just enter the code from onload
:
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"]);
});
This should help you:
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 );
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