JavaScript Code

Type Operators

Operator	Description	JS Example
typeof	returns type of variable	a = 5; console.log(typeof a);
instanceof	returns true if given object is an instance of specified type	var a = new String('apple'); console.log(a instanceof String);

Tutorials

• typeof
• instanceof

Examples

typeof

a = 4;
output = typeof a;
console.log(output);

a = "hello world";
output = typeof a;
console.log(output);

instance of

a = new String("hello world");
output = a instanceof String;
console.log(output);