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JavaScript实现url参数转成json形式
简介朋友问的一个面试题：有个url，要求获取url 的参数，返回值为json格式。简单的写了下，发笔记备份。simple a example for url to json</title</div>
<div class="news_infos"><div id="MyContent"><p>朋友问的一个面试题：有个url，要求获取url 的参数，返回值为json格式。</p>
<p>简单的写了下，发笔记备份。</p>
<div class="htmlcode">
<pre class="brush:js;">
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>simple a example for url to json</title>
<script>
var url = 'https://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=0&rsv_idx=1&tn=baidu&wd=慕课&rsv_pq=e379bd8200001a8c&rsv_t=ea8cxrgm03IFb44zHA261P6KziPRXAekcjwsRJtUSKLUmKweFsZFXE%2BUSrU&rqlang=cn&rsv_enter=0&rs';
function url2json(url){
var index = -1,
str = '',
arr = [],
length = 0,
res = {};
if(url.indexOf('?')!=-1){
index = url.indexOf('?');
str = url.substring(index+1);
arr = str.split('&');
length = arr.length;
for(var i=0; i<length-1; i++){
res[arr[i].split('=')[0]] = arr[i].split('=')[1];
}
}else{
res = {};
}
return res;
};
var result = url2json(url);
//获取json的键值对条数（模拟长度）
var length = 0;
for(var i in result){
length++;
}
//在页面输出
var tL = 0;
document.write('{<br>');
for(var name in result){
tL++;
if(tL == length){
document.write('  '+name+':'+result[name]+'<br>');
}else{
document.write('  '+name+':'+result[name]+',<br>');
}
}
document.write('}');
</script>
</head>
<body>
</pre>
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