# Javascript Substring Algorithm

**URL:** https://forum.kirupa.com/t/javascript-substring-algorithm/637921
**Category:** programming
**Created:** [March 8, 2018, 1:47am UTC](https://forum.kirupa.com/t/javascript-substring-algorithm/637921 "2018-03-08T01:47:19Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![alphons3k](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@alphons3k](https://forum.kirupa.com/u/alphons3k)
#### Post date: [March 8, 2018, 1:47am UTC](https://forum.kirupa.com/t/javascript-substring-algorithm/637921/1 "2018-03-08T01:47:19Z")

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i need to make a function /method given a string it will substring it to as many sets as the length of the string.  
EG  
"hi" —\> h,i, hi  
"bye" —\> b,y,e,by,ye, bye  
"home" —\> h,o,m,e,ho, om,me, hom, ome, home  
"kirupa" —\>  
k, i, r,u, p, a, ki, ir, ru, up, pa, kir, iru, rup, upa, kiru, irup, rupa, kirup, irupa

Thank you

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### Author: ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)
#### Post date: [March 8, 2018, 4:23am UTC](https://forum.kirupa.com/t/javascript-substring-algorithm/637921/2 "2018-03-08T04:23:08Z")

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Can you post some of the solutions you’ve tried? I can think of a few recursive approaches that would work! 🙂

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<div class="post-metadata">

### Author: ![alphons3k](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@alphons3k](https://forum.kirupa.com/u/alphons3k)
#### Post date: [March 8, 2018, 5:11am UTC](https://forum.kirupa.com/t/javascript-substring-algorithm/637921/3 "2018-03-08T05:11:51Z")

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> [@alphons3k](#):
>
> “kirupa”

Every time i ask a question, i sit back n figure it out. lol  
i simply asked myself what do i specifically need help with n BOOM i got it.

function subword(word){  
var ans=word; //save original word  
var spltW=‘’; //deletes first char of word  
var len= word.length;  
var arr=;  
var i=0;

while (i \< len) {

for (var j=1; j\<len; j++){  
spltW= word.slice(0,j);  
arr.push(spltW);  
}  
word= word.slice(1);  
i++;  
}  
arr.push(ans);

//remove duplicate

var narr=[arr[0]];

for (var i=0; i\<arr.length; i++){  
if(narr.indexOf(arr[i])==-1){narr.push(arr[i]);}  
}  
jarr= narr;

//order  
var marr=;  
for (var i=0; i\<jarr.length; i++){  
for (var j=0; j\<jarr.length; j++){  
if(jarr[j].length == i+1){marr.push(jarr[j]);}  
}  
}  
console.log(marr);  
}