if array javascript

1Array.isArray(object);

1var colors=["red","green","blue"];
2
3if(Array.isArray(colors)){
4    //colors is an array
5}

1Array.isArray(arr)

1Array.isArray([1, 2, 3]);	// true
2Array.isArray('asdf');		// false

1Array.isArray([1, 2, 3]);  // true
2Array.isArray({foo: 123}); // false
3Array.isArray('foobar');   // false
4Array.isArray(undefined);  // false
5

1// I know javascript can be hard but see this example and you will learn
2
3// Javascript if condition and array example
4var people = ["filex", "alex", "jon"];
5var peopleNeeded = people[1]; // 1 is the index bc the index starts from 0
6 
7if (peopleNeeded <= people[1]) {
8 console.log("alex needed");   
9} else {
10 console.log("lol");   
11}