typescript check if object is array code example

Example 1: javascript check if is array

var colors=["red","green","blue"];

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

Example 2: typescript check if element in array

your_array.includes(the_element)

Example 3: in javascript check is is an array or not

Array.isArray(yourItem)

Example 4: js check if is array

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

Example 5: how to check if array

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