javascript difference between two arrays
let difference = arr1.filter(x => !arr2.includes(x));javascript difference between two arrays
let difference = arr1.filter(x => !arr2.includes(x));comparing two arrays in javascript returning differences
function arrayDiff (a1, a2) {
var a = [], diff = [];
for (var i = 0; i < a1.length; i++) {
a[a1[i]] = true;
}
for (var i = 0; i < a2.length; i++) {
if (a[a2[i]]) {
delete a[a2[i]];
} else {
a[a2[i]] = true;
}
}
for (var k in a) {
diff.push(k);
}
return diff;
}
//usage:
console.log(arrayDiff(['red', 'white','green'], [ 'red','white', 'blue']));//["green", "blue"]Copyright © 2021 Codeinu
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