Nodejs String Repeat repeatMine()

Method Source Code

String.prototype.repeatMine = function () {
   var times = [].slice.call(arguments), 
      i,/* w w  w . jav a  2  s .  c  o  m*/
      newStr = '' + this;
   if (times == Infinity) {
       throw new RangeError('repeat count must be less than infinity');
    }
   times = Math.floor(times);
   if (times <= 0) {
      return '';
   } else if (times === 1) {
      return newStr;
   } else {
      for (i = 2; i <= times; i++) {
         newStr += this;
      }
      return newStr;
   }
}
'hello-'.repeatMine(0); //""
'hello-'.repeatMine(1); //"hello-"
'hello-'.repeatMine(2); //"hello-hello-"
'hello-'.repeatMine(3); //"hello-hello-hello-"
'hello-'.repeatMine(4.6); //"hello-hello-hello-hello-"
'hello-'.repeatMine(5.1); //"hello-hello-hello-hello-hello-"
'hello-'.repeatMine(1/0); //Uncaught RangeError: repeat count must be less than infinity

Related

1. repeat(times)

   String.prototype.repeat = function(times) {
      return (new Array(times + 1)).join(this);
   };
   for (i = 1; i <= 7; i++) {
     console.log('#'.repeat(i));
   

2. repeat(times)

   String.prototype.repeat = function(times){
       return new Array(times + 1).join(this).trim();
   

3. repeat(times)

   process.env.NODE_ENV = 'test';
   var chai = require('chai');
   chai.config.showDiff = false;
   global.expect = chai.expect;
   function repeat (str, times) {
     return new Array(times + 1).join(str);
   global.repeat = repeat;
   String.prototype.repeat = function (times) {
   ...
   

4. repeat(times)

   String.prototype.repeat = function(times) {
     var a = [this];
     for (var i = 0; i < times; i++) {
       a.push(this);
     return a.join("");
   

5. repeat(times)

   String.prototype.repeat = function(times) {
       times = times || 0;
       if (times < 0) {
           times = 0;
       return new Array(times + 1).join(this);
   };
   

6. repeatString(num)

   String.prototype.repeat = String.prototype.repeat || function(num) {
     return Array(num + 1).join(this);
   };
   

7. repeatify(multiplier)

   String.prototype.repeatify = String.prototype.repeatify || function(multiplier) {
     return new Array( multiplier + 1 ).join(this)
   };
   

8. repeatify(n)

   String.prototype.repeatify = function(n) {
     var str = ''
     for (var i = 0; i < n; i++) {
       str += this
     return str
   console.log('hello'.repeatify(3))
   

9. repeatify(numTimes)

   String.prototype.repeatify = function(numTimes) {
       var strArray = "";
       for (var i = 0; i < numTimes; i++) {
           strArray += this;
       return strArray;
   };
   console.log('hello'.repeatify(6));