I have the following function to get all of the substrings from a string in JavaScript. I know it’s not correct but I feel like I am going about it the right way. Any advice would be great.
var theString = 'somerandomword', allSubstrings = []; getAllSubstrings(theString); function getAllSubstrings(str) { var start = 1; for ( var i = 0; i < str.length; i++ ) { allSubstrings.push( str.substring(start,i) ); } } console.log(allSubstrings)
Edit: Apologies if my question is unclear. By substring I mean all combinations of letters from the string (do not have to be actual words) So if the string was ‘abc’ you could have [a, ab, abc, b, ba, bac etc…] Thank you for all the responses.
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Answer
You need two nested loop for the sub strings.
function getAllSubstrings(str) { var i, j, result = []; for (i = 0; i < str.length; i++) { for (j = i + 1; j < str.length + 1; j++) { result.push(str.slice(i, j)); } } return result; } var theString = 'somerandomword'; console.log(getAllSubstrings(theString));
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