Lesson 73: Operators

Arithmetic Operators

  • Addition (+): adds two or more numbers together, e.g. 2 + 3 equals 5.
  • Subtraction (-): subtracts one number from another, e.g. 5 - 3 equals 2.
  • Multiplication (*): multiplies two or more numbers together, e.g. 4 * 5 equals 20.
  • Division (/): divides one number by another, e.g. 10 / 2 equals 5.
  • Modulus (%): finds the remainder of a division operation, e.g. 17 % 5 equals 2.

Comparison Operators

  • Equal to (==): checks if two values are equal, e.g. 5 == 5 is true.
  • Not equal to (!=): checks if two values are not equal, e.g. 5 != 3 is true.
  • Less than (<) and greater than (>): compare two values, e.g. 3 < 5 and 5 > 3 are both true.
  • Less than or equal to (<=) and greater than or equal to (>=): e.g. 3 <= 5 and 5 >= 3 are both true.

Logical Operators

  • And (&&): checks if two conditions are both true, e.g. true && true is true.
  • Or (||): checks if either of two conditions is true, e.g. true || false is true.
  • Not (!): reverses the truth value of a condition, e.g. !true is false.

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