element is in array javascript code example
Example 1: javascript element in array
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var n = fruits.includes("Mango");
Example 2: how to check if item is in list js
var myList=["a", "b", "c"];
mylist.includes("d")//returns true or false
Example 3: check items in array javascript
function checkAllEven(arr) {
return arr.every(function(x){
return x % 2 === 0
})
}
//using "every" to check every item in array.