I'm using Google Minify to compress js files successfully.
I need to be able to pass a variable (like a $_GET variable) with this.
<script type="text/javascript" src="includes/min/?g=site_searchresults_js"></script>
Is there a way to pass a variable with the above code?
The process of determining the query string parameters that were passed when the script was added into the document is described in this article. It comes down to this kind of code:
var scripts = document.getElementsByTagName('script');
var myScript = scripts[ scripts.length - 1 ];
var queryString = myScript.src.replace(/^[^\?]+\??/,'');
var params = parseQuery( queryString );
function parseQuery ( query ) {
var Params = new Object ();
if ( ! query ) return Params; // return empty object
var Pairs = query.split(/[;&]/);
for ( var i = 0; i < Pairs.length; i++ ) {
var KeyVal = Pairs[i].split('=');
if ( ! KeyVal || KeyVal.length != 2 ) continue;
var key = unescape( KeyVal[0] );
var val = unescape( KeyVal[1] );
val = val.replace(/\+/g, ' ');
Params[key] = val;
}
return Params;
}
Related
I have a giving string/url like this
https://example.com/loadcontent?var1=100&var2=:somevar&var3=:morevariables
I need to loop thought each parameter in the url. If the value starts with : this indicated that it is a variable an I will need to change that value dynamically by looking at the corresponding meta attribute that matches that variable.
Here is my code in which loops over an array and sets the value of the parameters.
var baseURL = getBaseURL(url);
var params = getParams(url);
var newParams = $.each(params, function(index, param){
if( param.value.substring(0, 1) == ':'){
var myVar = param.value.substring(1);
param.value = $('meta[name=" + myVar + "']).attr('value');
}
});
var finalURL = baseURL + '?' + jQuery.param( newParams );
function getParams(url){
// This function should return an array of objects. Each object should have 2 properties "value" and "name". The "name" property should be the name of the parameter (ie. var1, var2, var3 .....) and the "value" attribute should contains the value of the parameter (ie. 100, :somevar, :morevariables)
}
function getBaseURL(url){
var cutoff = url.indexOf('?');
if( cutoff > -1){
return url.substring(0, cutoff - 1);
}
return url;
}
I need help converting the parameters of a giving URL to array of object. How can I do this in jQuery?
You dont need jQuery for this one.
function getParams(url) {
var queryString = url.substring(url.indexOf('?') + 1);
var paramsArr = queryString.split('&');
var params = [];
for (var i = 0, len = paramsArr.length; i < len; i++) {
var keyValuePair = paramsArr[i].split('=');
params.push({
name: keyValuePair[0],
value: keyValuePair[1]
});
}
return params;
}
Here is an example using map
var url = 'https://example.com/loadcontent?var1=100&var2=:somevar&var3=:morevariables&test';
function getParamArray(url) {
var queryString = url.substring(url.lastIndexOf("?") + 1);
return queryString.split('&').map(function(sParam) {
var param = sParam.split('=');
return {
name: param[0],
value: decodeURIComponent(param[1])
};
});
}
document.getElementById("output").innerHTML = JSON.stringify(getParamArray(url), null, 2);
<pre id="output"></pre>
With a regular expresion and JSON.parse:
var url = 'https://example.com/loadcontent?var1=100&var2=:somevar&var3=:morevariables';
url = url.replace(/^.*\?/,'');
url = url.replace(/(\w+)=?([\w:]*)/g,'{"name":"$1","value":"$2"}');
url = url.replace(/&/g,',');
var paramsObject = JSON.parse("["+url+"]");
/*
Returns:
Array [{"name":"var1","value":"100"},{"name":"var2","value":":somevar"},{"name":"var3","value":":morevariables"}];
*/
You don't even need JQuery for this.
<script type="text/javascript">
var paramStr = window.location.search;
var params = paramStr.substring(1, paramStr.length).split('&');
var paramList = [];
for (var index=0; index < params.length; index++) {
var param = params[index].split('=');
paramList.push({name: param[0], value: param[1]});
}
</script>
The result:
[Object]0: Object
name: "a"
value: "b"
...
var url=new URLSearchParams(window.location.search);
var params = [];
for(var value of url.keys())
{
params.push({
name: value,
value: url.get(value)
});
}
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"}
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"]);
});
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 );
You can use:
var param = new URLSearchParams(urlString).get('theParamName');
Or if searching the current page:
var param = new URLSearchParams(location.search).get('theParamName');
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 :)
I wrote this one liner with ES6 syntax which follows the method of the accepted answer.
function getParam(key){
return window.location.href.split('?')[1].split('&').filter(x=>x.split('=')[0]==key)[0].split('=')[1];
}
Use:
Lets say the current URL is: https://stackoverflow.com?question=30271461
getParams('question') //30271461
Suppose I am loading a JavaScript file like this:
<script type="text/javascript" src="http://foo.com/script.js?id=120#foo"></script>
Is it possible to read GET or hash parameter passing through this?
I am currently doing this using PHP (with headers) like:
<script type="text/javascript" src="http://foo.com/script.php?id=120"></script>
Look here, and replace the window.loaction with your src string.
How to retrieve GET parameters from javascript?
function getSearchParameters() {
var prmstr = window.location.search.substr(1);
return prmstr != null && prmstr != "" ? transformToAssocArray(prmstr) : {};
}
function transformToAssocArray( prmstr ) {
var params = {};
var prmarr = prmstr.split("&");
for ( var i = 0; i < prmarr.length; i++) {
var tmparr = prmarr[i].split("=");
params[tmparr[0]] = tmparr[1];
}
return params;
}
var params = getSearchParameters();
to get the string:
var str = $('script').attr('src')
or without jQuery:
document.querySelectorAll('script')[0].src
I want a javascript variable to be what is behind the ?url= in the url..
for example: The current url is
http://mywebsite.com/test/index.html?url=http://www.google.com/
So the variable has to be http://www.google.com/ .
I tried this, but it doesn't work… why ?
var url = document.URL ;
var appname = url.match(?url=(.+))[1];
Thanks.
I think the following will work for you:
function querystring(key) {
var query = window.location.search.substring(1);
var keys = query.split("&");
for (i = 0; i < keys.length; i++) {
var values = keys[i].split("=");
if (values[0] == key) {
return values[1];
}
}
}
var appname = querystring("url");
alert(appname);
Try this:
var regex = /\?url\=(.+)/;
var appname = regex.exec(url)[1];
or even simpler:
var appname = /\?url\=(.+)/.exec(url)[1];
var url = location.search.match(/url=([^&]+)&*.*$/)[1]; // http://www.google.com/
location //location object
.search //the search part in location
.match //return string according to regex given
[1] //second result (result in parenthesis)
//--------Use in a function---------
function getQuery(txt){
var result = location.search.match(new RegExp(txt + "=([^&]+)&*.*$"));
return result === null ? undefined : result[1];
}
http://jsfiddle.net/DerekL/J4FfZ/
I have string which is in url like below
?type=english&time=today
I want to get the values of type and time and curently doing like below
var str="?type=english&time=today";
var spt =str.split("&");
var typeval =spt[0].split("=")[1];
var timeval =spt[1].split("=")[1];
document.write(" type :"+typeval+" time : "+timeval);
What is the efficient way to get the values using javascript.
Use jQuery BBQ's $.deparam function.
var str='type=english&time=today',
obj = $.deparam(str),
typeval = obj.type, // 'english'
timeval = obj.time; // 'today'
It works with all sorts of fancy URL-encoded data structures (see the linked examples).
You can use the gup function- get url parameters:
function gup( name )
{
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return "";
else
return results[1];
}
I always use this script:
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;
}
then
var hash = getUrlVars();
alert(hash['type']);
will give 'english'
it's easily adaptable to what you want
var obj = {},
str = "?type=english&time=today";
$.each(str.split(/&|\?/), function(){
var tmp = this.split('=');
( tmp.length>1 ) && ( obj[ tmp[0] ] = tmp[1] );
})
// obj = { type : 'english', time : 'today' }