We are required to write a JavaScript function that takes in two arrays of Numbers, say first and second and checks for their equality.
The arrays will be considered equal if −
- They contain the same elements and in the same order.
- The product of all the elements of the first array and second array is equal.
The first array of numbers −
const first = [3, 5, 6, 7, 7];
The second array of numbers −
const second = [7, 5, 3, 7, 6];
Example
Following is the code −
const first = [3, 5, 6, 7, 7]; const second = [7, 5, 3, 7, 6]; const isEqual = (first, second) => { const prodFirst = first.reduce((acc, val) => acc*val); const prodSecond = second.reduce((acc, val) => acc*val); if(prodFirst === prodSecond){ return true; }; for(let i = 0; i < firstCopy.length; i++){ if(first[i] === second[1]){ continue; }; return false; }; return true; }; console.log(isEqual(first, second));
Output
This will produce the following output in console −
true