JavaScript String extension

String_extension.js

  String.prototype.queryURLParams = function () {
    let obj = {},
      reg = /([^?=&#]+)=([^?=&#]+)/g;
    this.replace(reg, function () {
      // arguments[0] === this 
      const key = arguments[1];
      obj[key] = arguments[2];
    });
    return obj;
  };