javascript get elements that exist in two arrays
function getArraysIntersection(a1,a2){
return a1.filter(function(n) { return a2.indexOf(n) !== -1;});
}
var colors1 = ["red","blue","green"];
var colors2 = ["red","yellow","blue"];
var intersectingColors=getArraysIntersection(colors1, colors2); //["red", "blue"]check if 2 arrays are equal javascript
var arraysMatch = function (arr1, arr2) {
// Check if the arrays are the same length
if (arr1.length !== arr2.length) return false;
// Check if all items exist and are in the same order
for (var i = 0; i < arr1.length; i++) {
if (arr1[i] !== arr2[i]) return false;
}
// Otherwise, return true
return true;
};Copyright © 2021 Codeinu
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