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JavaScript code explanation for URL parsing query parameters

巴扎黑
Release: 2017-08-08 09:58:51
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This article introduces you to the method of js parsing url query parameters through simple code, and then introduces to you two ways of js to obtain url parameter values ​​at the bottom of the article. It is very good and has reference value. Friends who need it can refer to it. Okay

No more nonsense, I will post the code directly for everyone. The specific code is as follows:


var path = 'www.u.com/home?id=2&type=0&dtype=-1';
function parseUrl(url){
  var result = [];
  var query = url.split("?")[1];
  var queryArr = query.split("&");
  queryArr.forEach(function(item){
    var obj = {};
    var value = item.split("=")[0];
    var key = item.split("=")[1];
    obj[key] = value;
    result.push(obj);
  });
  return result;
}
console.log(parseUrl(path)); 
//[{id: '2'},{type: '0'},{dtype: '-1'}]
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Okay , let’s take a look at the two ways to get the url parameter value in js

Method 1: Regular analysis method

The code is as follows:


function getQueryString(name) { 
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i"); 
var r = window.location.search.substr(1).match(reg); 
if (r != null) return unescape(r[2]); return null; 
}
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Calling method:


alert(GetQueryString("参数名1"));alert(GetQueryString("参数名2")); 
alert(GetQueryString("参数名3"));
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Method 2

The code is as follows:


<Script language="javascript"> 
function GetRequest() { 
var url = location.search; //获取url中"?"符后的字串 
var theRequest = new Object(); 
if (url.indexOf("?") != -1) { 
var str = url.substr(1); 
strs = str.split("&"); 
for(var i = 0; i < strs.length; i ++) { 
theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]); 
} 
} 
return theRequest; 
} 
</Script>
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Calling method:


##

<Script language="javascript"> 
var Request = new Object(); 
Request = GetRequest(); 
var 参数1,参数2,参数3,参数N; 
参数1 = Request[&#39;参数1&#39;]; 
参数2 = Request[&#39;参数2&#39;]; 
参数3 = Request[&#39;参数3&#39;]; 
参数N = Request[&#39;参数N&#39;]; 
</Script>
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