Extract Url From String With Javascript

this sounds like something you could just google, but been looking for hours. basically have this string i am ajaxing from another site 'function onclick(event) { toFacebook('http:

Solution 1:

if it is always with the dash (i'm assuming you want everything before the dash), you can use the split method:

var arr = split(val);

your data will be in arr[0]

Solution 2:

you can use these functions in javascript:

function parseUrl1(data) {
var e=/^((http|ftp):\/)?\/?([^:\/\s]+)((\/\w+)*\/)([\w\-\.]+\.[^#?\s]+)(#[\w\-]+)?$/;if (data.match(e)) {
    return  {url: RegExp['$&'],
            protocol: RegExp.$2,
            host:RegExp.$3,
            path:RegExp.$4,
            file:RegExp.$6,
            hash:RegExp.$7};
}
else {
    return  {url:"", protocol:"",host:"",path:"",file:"",hash:""};
}
}

function parseUrl2(data) {
var e=/((http|ftp):\/)?\/?([^:\/\s]+)((\/\w+)*\/)([\w\-\.]+\.[^#?\s]+)(#[\w\-]+)?/;if (data.match(e)) {
    return  {url: RegExp['$&'],
            protocol: RegExp.$2,
            host:RegExp.$3,
            path:RegExp.$4,
            file:RegExp.$6,
            hash:RegExp.$7};
}
else {
    return  {url:"", protocol:"",host:"",path:"",file:"",hash:""};
}
}

References :http://lawrence.ecorp.net/inet/samples/regexp-parse.php

Solution 3:

just ended up doing this

$a.substring($a.indexOf("http:"), $a.indexOf("?"))

regular expressions are beyond me.

Solution 4:

yourFunction.toString().split("'")[1] does the job.

Solution 5:

var urlRegex = /(http?:\/\/[^\s]+)/g;

    var testUrl = text.match(urlRegex);

    if (testUrl === null) {

    return"";

      }else {

    var urlImg = testUrl[0];

    return urlImg;

     }