如何将URL参数转换为JavaScript对象? [英] How to convert URL parameters to a JavaScript object?

问题描述

我有一个像这样的字符串:

I have a string like this:

abc=foo&def=%5Basf%5D&xyz=5

如何将其转换为这样的JavaScript对象?

How can I convert it into a JavaScript object like this?

{
  abc: 'foo',
  def: '[asf]',
  xyz: 5
}

推荐答案

编辑

此修改根据评论进行了改进并解释了答案.

Edit

This edit improves and explains the answer based on the comments.

var search = location.search.substring(1);
JSON.parse('{"' + decodeURI(search).replace(/"/g, '\\"').replace(/&/g, '","').replace(/=/g,'":"') + '"}')

示例

分五个步骤来解析abc=foo&def=%5Basf%5D&xyz=5:

• decodeURI:abc = foo& def = [asf]& xyz = 5
• 转义引号:相同，因为没有引号
• 替换& ;: abc=foo","def=[asf]","xyz=5
• 替换=:abc":"foo","def":"[asf]","xyz":"5
• 周围带有小圆括号和引号:{"abc":"foo","def":"[asf]","xyz":"5"}

• decodeURI: abc=foo&def=[asf]&xyz=5
• Escape quotes: same, as there are no quotes
• Replace &: abc=foo","def=[asf]","xyz=5
• Replace =: abc":"foo","def":"[asf]","xyz":"5
• Suround with curlies and quotes: {"abc":"foo","def":"[asf]","xyz":"5"}

这是合法的JSON.

改进的解决方案允许在搜索字符串中添加更多字符.它使用reviver函数进行URI解码:

An improved solution allows for more characters in the search string. It uses a reviver function for URI decoding:

var search = location.search.substring(1);
JSON.parse('{"' + search.replace(/&/g, '","').replace(/=/g,'":"') + '"}', function(key, value) { return key===""?value:decodeURIComponent(value) })

示例

search = "abc=foo&def=%5Basf%5D&xyz=5&foo=b%3Dar";

给予

Object {abc: "foo", def: "[asf]", xyz: "5", foo: "b=ar"}

原始答案

单线:

JSON.parse('{"' + decodeURI("abc=foo&def=%5Basf%5D&xyz=5".replace(/&/g, "\",\"").replace(/=/g,"\":\"")) + '"}')

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