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Validating string with reference to array of words using JavaScript
Problem
We are required to write a JavaScript function that takes in a sequence of valid words and a string. Our function should test if the string is made up by one or more words from the array.
Input
const arr = ['love', 'coding', 'i']; const str = 'ilovecoding';
Output
const output = true;
Because the string can be formed by the words in the array arr.
Example
Following is the code −
const arr = ['love', 'coding', 'i']; const str = 'ilovecoding'; const validString = (arr = [], str) => { let arrStr = arr.join(''); arrStr = arrStr .split('') .sort() .join(''); str = str .split('') .sort() .join(''); const canForm = arrStr.includes(str); return canForm; }; console.log(validString(arr, str));
Output
true
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