How to Check for Element Overlap Between a Target Array and Multiple Subarrays in JavaScript?

Verifying Element Overlap in Arrays Using JavaScript

Given an array of target elements targetArr and a series of other arrays subArr, determine whether any of the subarrays contain any element from the target array.

targetArr = ["apple", "banana", "orange"]
subArr = [
    ["apple", "grape"], // true
    ["apple", "banana", "pineapple"], // true
    ["grape", "pineapple"] // false
]

Vanilla JS Solution

const isElementPresent = (targetArr, subArr) => {
  return targetArr.some((element) => subArr.includes(element));
};

Explanation: The some method checks if any element in the subArr array passes the test provided by the callback function includes. If any element matches, it returns true; otherwise, it returns false.

// Example usage
const hasTargetElement = subArr.some((arr) => isElementPresent(targetArr, arr));

By iterating through each subarray using the some method, we can determine if any of the subarrays contain any element from the targetArr.

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