JS解析url链接和获得get参数的两种方法

[wqhui]

解析url有两种方式，下面直接贴代码：

/**
 * 方法一：正则解析url
 * @param {String} url  eg:https://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&tn=baidu&wd=js&oq=js
 */
const parseUrl = (url) => {
  const reg = /(\w+):\/\/([\w\.]+)\:?(\d*)?([\/\.\w]*)?\??([^#]*)?#?(\S*)?/
  var mattchGroup = url.match(reg)
  const result = {}

  result.protocol = mattchGroup[1] //=>(\w+):\/\/ 
  result.host = mattchGroup[2] //=>([\w\.]+)\:? 
  result.port = mattchGroup[3] || 80 //(\d*)?
  result.path = mattchGroup[4] // ([\/\.\w]*)?
  result.query = mattchGroup[5] || '' //([^#]*)?
  result.hash = mattchGroup[6] || '' // (\S*)?

  return result
}


/**
 * 方法二：a标签解析url
 * @param {String} url  eg:https://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&tn=baidu&wd=js&oq=js
 */
const parseUrl2 = (url) => {
	let aDom = document.createElement('a')
	aDom.setAttribute('href',url)
  	 const result = {
		protocol: aDom.protocol,
		host: aDom.host,
		port: aDom.port || 80 ,
		path: aDom.pathname,
		query: aDom.search,
		hash: aDom.hash
	}
	aDom = null
	return result
}

解析查询参数也有两种方式：

/**
 * 方法一：正则获得查询参数
 * @param {String} urlQuery eg:   
 */
const parseQueryParams = (urlQuery) => {
    const params = {}
    urlQuery.replace(/([^?&=]+=[^&=]+)/g,function(_,k,v){
        params[k]=v
    })
    return params
}


/**
 * 方法二：分割方式获得查询参数
 * @param {String} urlQuery eg:   
 */
const parseQueryParams = (urlQuery) => {
  let params = {}
  const paramsGroup = urlQuery.split('&')
  for (let item of paramsGroup) {
    const paramsItemGroup = item.split('=')
    if (paramsItemGroup && paramsItemGroup.length > 0) {
      let paramValue = paramsItemGroup[1]
      paramValue = paramValue.replace(/%2B/gi,'+')
      paramValue = paramValue.replace(/%20/gi,' ')
      paramValue = paramValue.replace(/%2F/gi,'/')
      paramValue = paramValue.replace(/%3F/gi,'?')
      paramValue = paramValue.replace(/%25/gi,'%')
      paramValue = paramValue.replace(/%26/gi,'&')
      paramValue = paramValue.replace(/%3D/gi,'=')
      paramValue = paramValue.replace(/%23/gi,'#')
      params[paramsItemGroup[0]] = paramValue
    }
  }
  return params
}