how to check if array

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

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

1if(Array.isArray(myVarToTest)) {
2	// myVatToTest is an array
3} else {
4	// myVarToTest is not an array
5}

1if(Array.isArray(colors)){
2    //colors is an array
3}

1// Check if something is an Array 
2// just like you do with "typeof"
3Array.isArray([1, 2, 3]);	// true
4Array.isArray('asdf');		// false