JavaScript Operators

Logical Operators

&& logical and || logical or ! logical not

Multiplication operator

(*) multiplies numbers. var x = 5; var y = 2; var z = x * y;

Addition operator

(+) adds numbers: var x = 5; var y = 2; var z = x + y;

Addition assignment Operator

(+=) adds a value to a variable. var x = 10; x += 5; equals 15

Arithmetic Operators

Arithmetic operators are used to perform arithmetic on numbers: + Addition - Subtraction * Multiplication / Division % Modulus ++ Increment -- Decrement

Assignment Operators

Assignment operators assign values to JavaScript variables.

String Operators

The + operator can also be used to add (concatenate) strings. The += assignment operator can also be used to add (concatenate) strings.

What does the concatenation operator do?

The concatenation operator adds strings together.

Assignment Operator

The symbol =, which is used to store a value in a variable

True or false: If you add a number and a string, the result will be a string?

True

Type Operators

typeof Returns the type of a variable instanceof Returns true if an object is an instance of an object type