Nodejs String Sub String substrings()

Method Source Code

String.prototype.substrings = function () {
    const res = [];//from   w  ww.  j ava 2s  .c om
    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;
};

Related

1. 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());
   

2. 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;
   };
   ...
   

3. substrings()

   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));
     return array;
   };
   ...
   

4. 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;
   };
   

5. 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;
   

6. 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;
   };
   ...
   

7. substrings()

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

8. substrings()

   String.prototype.substrings = function() {
     var substrings = []
     for (var i1 = 0; i1 < this.length; i1++) {
       for (var i2 = i1; i2 < this.length; i2++) {
         substrings.push(this.substr(i1, i2 + 1));
     return substrings;
   console.log("abc".substrings());
   

9. substrings()

   String.prototype.substrings = function () {
     let substrings = [];
     let chars = this.split('');
     for (let i = 0; i <= chars.length; i++) {
       for (let j = i + 1; j <= chars.length; j++) {
         let substring = chars.slice(i, j);
         substrings.push(substring.join(''));
     return substrings;
   };