Using location.search to locate a parameter's value

问题

I’m working on a tool which takes the value parameters in the URL and does a few things with them.

My issue is, I can’t seem to use document.location to show the specific value that I’m after, for example:

www.examplesite.com?yourname=gilgilad

I want to use document.location.search and put it in a var, I need that var's value to be "gilgilad".

Is this even possible using location.search?

回答1:

location.search will return all after question mark including it. So there is universal js to get value of the first parameter (even if url has more parameters):

var desire = location.search.slice(1).split("&")[0].split("=")[1]

Example: let's take url http://example.com?name=jon&country=us

location.search will be equal to ?name=jon&country=us
'.slice (1)' skips the '?', returning the rest of the string. 3 .split("&")[0] splits it into two strings (?name=jon and country=us) and takes first one
.split("=")[1] splits name=jon into name and jon and takes the second one. Done!

回答2:

A more generic solution to split the location.search query parameters and convert them into an object:

var a = location.search.split("&");
var o = a.reduce(function(o, v) {
    var kv = v.split("=");
    kv[0] = kv[0].replace("?", "");
    o[kv[0]] = kv[1];
    return o;
    },
{});

回答3:

let url = new URL('www.examplesite.com?yourname=gilgilad');
let searchParams = new URLSearchParams(url.search);
console.log(searchParams.get('yourname'));

you can consider also to user window.location or window.location.search directly

let searchParams = new URLSearchParams(window.location.search);
console.log(searchParams.get('yourname'));

回答4:

To make ?yourname=gilgilad using document.location.search:

window.location.search = 'yourname=gilgilad';

here is jsfiddle: http://jsfiddle.net/t81k3bgc/

make sure to use console and then [run]. you will see:

For more information: https://developer.mozilla.org/en-US/docs/Web/API/Window.location#Example_.235.3A_Send_a_string_of_data_to_the_server_by_modifying_the_search_property.3A

来源：https://stackoverflow.com/questions/26803110/using-location-search-to-locate-a-parameters-value

标签

javascript

location