Nodejs String Repeat repeat(count)

Method Source Code

String.prototype.repeat = function(count) {
  if (count < 1) return '';
  var result = '', pattern = this.valueOf();
  while (count > 0) {
    if (count & 1) result += pattern;
    count >>= 1, pattern += pattern;
  }//from  w  w  w . j  a  v a2  s . c  o m
  return result;
};

Related

1. repeat(count)

   String.prototype.repeat = function (count) {
     if (count < 1) return '';
     var str = '';
     while (count > 0) {
       str += this;
       count--;
     return str;
   

2. repeat(count)

   String.prototype.repeat = function(count) {
       var result = "";
       var i;
       for (i = 0; i < count; i += 1) {
           result += this;
       return result;
   };
   

3. repeat(count)

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

4. repeat(count)

   var range = function(k) {
       return Array.apply(null, Array(k)).map(function(_, i) {
           return i;
       });
   };
   String.prototype.repeat = function(count) {
       if (count < 1) return '';
       var result = '', pattern = this.valueOf();
       while (count > 1) {
   ...
   

5. repeat(count)

   String.prototype.repeat = function(count) {
     if (count < 1) return '';
     var result = '', pattern = this.valueOf();
     while (count > 0) {
       if (count & 1) result += pattern;
       count >>= 1, pattern += pattern;
     return result;
   };
   ...
   

6. repeat(count)

   String.prototype.repeat = function(count) {
       if (count < 1) return '';
       var result = '', pattern = this.valueOf();
       while (count > 0) {
           if (count & 1) result += pattern;
           count >>= 1, pattern += pattern;
       return result;
   };
   ...
   

7. repeat(count)

   String.prototype.repeat = function(count) {
     if (count === 1) return this;
     return this + this.repeat(count - 1);
   };
   

8. repeat(count)

   String.prototype.repeat = function(count) {
    return (count === 1) ? this : this + this.repeat(count-1);
   };
   console.log('x'.repeat(8) + 'Sub-node');
   

9. repeat(count)

   String.prototype.repeat = function(count) {
     var result = '';
     for (var i = 0; i < count; i++) {
       result += this;
     };
     return result;
   console.log("*".repeat(5).padLeft(10, "-").padRight(15, "+"));