function PhoneNumber() {
    
    
    this.arrayNumber = ['110', '10', '111', '11', '0', '1000', '100', '1', '101', '1001'];
    this.i = 0;
    this.len = 0;
    this.result = '';
}
PhoneNumber.prototype.calculation = function (params = '') {
    
    
    this.len = params.length;

    if (!this.len) return '长度不能为空！';
    if (!/^\d+$/.test(Number(params))) return '请输入纯数字！';

    for (; this.i < this.len;)(this.result += parseInt(this.arrayNumber[params[this.i]], 2), this.i++);

    this.result = `${
      
      this.result.substr(0, 3)} ${
      
      this.result.substr(3, 4)} ${
      
      this.result.substr(7)}`;

    return this.result;
}

let phoneNumber = new PhoneNumber();
console.log(phoneNumber.calculation('78159051872'));