is_array javascript code example

Example 1: if object is array javascript

Array.isArray(object);

Example 2: validate array javascript

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

Example 3: javascript check if is array

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

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

Example 4: javascript typeof array

Array.isArray(arr)

Example 5: js check if is array

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

Example 6: typeof array javascript

//The method Array.isArray(A) checks if A is an array

Array.isArray([1, 2, 3]);  // true
Array.isArray('foobar');   // false for strings
Array.isArray({foo: 123}); // false for objects