find new values in array based on another array apps script
// elements to filter out.
const keys = [['a','b','c']],
keySet = new Set(keys[0]),
// example data.
data = [['a',1,2],
['c',4,3],
['d',3,4]],
out = data.filter(([item0])=>!keySet.has(item0));
console.info(out);if array ontains any item of another array js
const found = arr1.some(r=> arr2.indexOf(r) >= 0)Copyright © 2021 Codeinu
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