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32 lines
744 B
JavaScript
32 lines
744 B
JavaScript
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/**
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* Get all possible combinations of substrings that add up to the given string
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* https://stackoverflow.com/questions/30169587/find-all-the-combination-of-substrings-that-add-up-to-the-given-string
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* @param {string} input
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* @return {string[][]}
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*/
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export const allSubstrings = (input) => {
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if( input.length === 1) return [[input]];
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/** @type {string[][]} */
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let result = [];
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const start = input.substring(1);
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const suba = allSubstrings(start);
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suba.forEach(function(subresult) {
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let tmp = subresult.slice(0);
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tmp[0] = input.charAt(0) + tmp[0];
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result.push(tmp);
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tmp = subresult.slice(0);
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tmp.unshift(input.charAt(0));
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result.push(tmp);
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});
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return result;
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}
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