Here's a sample of the problem I'm having in JavaScript:
first array [1, 2, 3, 4, 5, 6, 7]
second array [7, 8, 9, 4, 2, 5, 7]
In this case, I need to be able to find and eliminate "4" and "7" from both arrays, eliminating both. This is based on their location and matching value.
I haven't been able to find anything other than eliminating matching values. In this case, however, the values must be in the same place and also be matching.
I've tried this so far:
function findCommonElements3(array1, array2) {
return arr1.some(item => arr2.includes(item))
}
it looks like it only looks for matching elements, whereas I need to find matching corresponding elements and then remove them.