web-utils-super/getQueryString.js

前端函数库

/**
 * @desc 获取url参数中对应key的值
 * @param {String} key
 * @param {String} url
 * @return {String}
 */
function getQueryString(key, url) {
  let winObj = arguments.length > 1 ? arguments[1] : window
  let reg = new RegExp('(^|\\?|&)' + key + '=([^&]*)(\\s|&|$)', 'i')
  if (arguments.length <= 1) {
    if (typeof winObj.location != 'object') {
      winObj = window
    }
    if (reg.test(winObj.location.href)) return unescape(RegExp.$2.replace(/\+/g, ' '))
    return ''
  } else {
    if (reg.test(url)) return unescape(RegExp.$2.replace(/\+/g, ' '))
    return ''
  }
}

module.exports = getQueryString