Nodejs String Sub String substrings()

Method Source Code

String.prototype.substrings = function(){
  var array = [];

  for(var i = 0; i < this.length - 1; i++ ){
    for(var j= i + 1; j <= this.length; j++){
      array.push(this.substring(i, j));//w w w  .  j ava 2s . co  m
    }
  }
  return array;
};

// console.log("cat".substrings());

Related

1. substrb(len)

   String.prototype.substrb = function(len){
     var str1;
     if(this.lengthb() <= len)
       return this;
     for(var i = len/2; i < this.length; i++)
       str1 = this.substr(0,i);
   ...
   

2. substring(start, end)

   String.prototype.substring = function(start, end) {
     if (start < 0) {
       start = start + this.length;
     if (!end) {
       end = this.length;
     } else if (end < 0) {
       end = end + this.length;
     var s = "";
     for (var i = start, len = this.length; i < end && i < len; i++) {
       s += this[i];
     return s;
   };
   

3. substrings()

   String.prototype.substrings = function () {
     subs = [];
     for(var i = 0; i < this.length; i++) {
       for( var j = i+1; j < this.length+1; j++) {
         subs.push(this.slice(i,j));
       };
     };
     return subs;
   };
   ...
   

4. substrings()

   String.prototype.substrings = function(){
     var substrings = []
     for (var i=0; i<this.length; i++){
       for (var j=i+1; j<=this.length; j++){
         substrings.push(this.slice(i,j));
     return substrings;
   var str = 'cat';
   console.log(str.substrings());
   

5. substrings()

   String.prototype.substrings = function () {
     var substrings = [];
     for (var start = 0; start < this.length; start++) {
       for (var len = 1; (start + len) <= this.length; len++) {
         substrings.push(this.slice(start, start + len));
     return substrings;
   };
   ...
   

6. substrings()

   String.prototype.substrings = function() {
     subs = [];
     for (var i=0; i<this.length; i++) {
       for(var j=i+1; j<=this.length; j++) {
         var sub = this.substring(i, j);
         if (subs.indexOf(sub) === -1) {
           subs.push(sub);
     return subs;
   };
   

7. substrings()

   String.prototype.substrings = function(){
     var substrArr = [];
     for(var i = 0; i < this.length; i++){
       for(var j = i; j < this.length; j++){
         substrArr.push(this.slice(i, (j+1)));
     return substrArr;
   

8. substrings()

   String.prototype.substrings = function () {
       const res = [];
       for (let i = 0; i < this.length; i++) {
         for (let j = i + 1; j <= this.length; j++) {
           let word = this.slice(i,j);
           if (!res.includes(word)){
             res.push(word);
       return res;
   };
   

9. substrings()

   String.prototype.substrings = function() {
     var subs = [];
     for(var i = 0; i < this.length; i++) {
       for(var j = i + 1; j <= this.length; j++) {
         subs.push(this.slice(i, j));
     return subs;
   };
   ...