Definition:

“Operators are used to assign values, compare values, perform arithmetic operations and more. Operators allow programmers to create a single value from one or more values.”

Binary Operators:

• Definition: Requires two operands, one before the operator and one after the operator.

• Syntax: operand1 operator operand2

• Example: 2 + 3; or x * z;

Unary Operators:

• Definition: Requires a single operand, either before or after the operator.

• Syntax: operator operand OR operand operator

• Example: y++ OR ++y

Arithmetic Operators: Multiplication, Division, Modulus, Addition and Subtraction

• Definition: Takes numerical values (either literals or variables) as their operands and returns a single numerical value.

• Example: var count = 10 + 5 - 4; // 11

• Example: var mult = 3 * 5; // 15

Modulus Operators

• Definition: This will give us the remainder of two values.

• Example: 21 % 4; // 1

Assignment Operators:

• Definition: Assigns a value to its left operand based on the value of its right operand.

• Example: var count = 5;

Comparison Operators:

• Definition: Compare both sides of equation and returns a logical value based on whether the comparison is true. The operands can be numerical, string, logical, or object values.

• Equality operator (==): Checks for equality in value. Coersion may take place finding equal values between a string and number.

• Strict equality operator (===): Checks for equality in value and type. Does not leave room for coersion.

String Operator:

• Definition: When the ‘+’ is used on strings the ‘+’ operator is called the concatenation operator.