compare two array values code example

Example 1: comparing 2 array

//javascript by the davido skills
const arr1 = [1, 2, 3];
const arr2 = [1, 3, 3];

if (arr1.length !== arr2.length) return console.log("false");
let j = 0
for (let i = 0; i < arr1.length; i++) {
        if (arr1[i] === arr2[j]) {
            console.log("yes match", arr1[i], arr2[j]);
        }
        else{
          console.log("no match", arr1[i], arr2[j]);
        }
    j++;
}
//javascript by the davido skills

Example 2: javascript find matching elements in two arrays

const intersection = array1.filter(element => array2.includes(element));

Example 3: javascript find matching elements in two arrays

let firstArray = ["One", "Two", "Three", "Four", "Five"];
let secondArray = ["Three", "Four"];

let map = {};
firstArray.forEach(i => map[i] = false);
secondArray.forEach(i => map[i] === false && (map[i] = true));
let jsonArray = Object.keys(map).map(k => ({ name: k, matched: map[k] }));

Example 4: compare two arrays

echo ${Array1[@]} ${Array2[@]} | tr ' ' '\n' | sort | uniq -u