Nodejs String Repeat repeat(n)

Method Source Code

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

console.log("ha".repeat(5));  // hahahahaha

Related

1. 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, "+"));
   

2. repeat(count)

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

3. repeat(count, max = 5, zero = '---')

   String.prototype.$repeat = function (count, max = 5, zero = '---') {
     if (count > max) {
       return `${this} x ${count}`;
     } else if (count > 0) {
       return this.repeat(count);
     } else {
       return zero;
   };
   ...
   

4. repeat(length)

   String.prototype.repeat = function(length) {
       var that = this;
       for (var i = 0; i < length-1; i++) {
           that += this;
       return that;
   

5. repeat(n)

   String.prototype.repeat = function (n) {
     var s = '';
     for (var i = 0; i < n; i++) s+= this;
     return s;
   

6. repeat(n)

   String.prototype.repeat = function(n) {
       return new Array(1 + (n || 0)).join(this);
   console.log("ha".repeat(5));  
   

7. repeat(n)

   String.prototype.repeat = function(n) {
       return new Array(isNaN(n) ? 1 : ++n).join(this);
   

8. repeat(n)

   String.prototype.repeat = function(n)
       return new Array(n+1).join(this);
   function christmasTree(height) {
     var tree = [];
     for(var i = 1; i <= height; i++) {
       tree.push(" ".repeat(height - i) + "*".repeat((i - 1) * 2 + 1) + " ".repeat(height - i));
     return tree.join("\n");
   

9. repeat(n)

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