is value in array js code example
Example 1: javascript check if is array
var colors=["red","green","blue"];
if(Array.isArray(colors)){
//colors is an array
}
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.