JavaScript+Operators

JavaScript Operators

Arithmetic Operators

• Description: Used to perform mathematical calculations.

• Operators and Examples:

  • + (Addition):

    • Example: X = 2, Y = 3; X + Y

    • Result: 5

  • - (Subtraction):

    • Example: X = 6, Y = 3; X - Y

    • Result: 3

  • * (Multiplication):

    • Example: X = 2, Y = 3; X * Y

    • Result: 6

  • / (Division):

    • Example: X = 9, Y = 3; X / Y

    • Result: 3 (For X = 5, Y = 2; X / Y Result: 2.5)

  • % (Modulus) (Remainder):

    • Example: 5 % 2 (Result: 1), 10 % 8 (Result: 2), 10 % 2 (Result: 0)

  • ++ (Increment):

    • Example: X = 5; X++

    • Result: 6

  • -- (Decrement):

    • Example: X = 5; X--

    • Result: 4

Assignment Operators

• Description: Used to assign values to variables.

• Operators and Examples:

  • = (Simple Assignment):

    • Example: x = y

  • += (Addition Assignment):

    • Example: x += y

    • Equivalent to: x = x + y

  • -= (Subtraction Assignment):

    • Example: x -= y

    • Equivalent to: x = x - y

  • *= (Multiplication Assignment):

    • Example: x *= y

    • Equivalent to: x = x * y

  • /= (Division Assignment):

    • Example: x /= y

    • Equivalent to: x = x / y

  • %= (Modulus Assignment):

    • Example: x %= y

    • Equivalent to: x = x % y

Comparison Operators

• Description: Used to compare two values.

• Operators and Examples:

  • == (Equality):

    • Example: x == 9

    • Result: false

  • === (Strict Equality) (checks both value and type):

    • Example: x === 5 (Result: true), x === "5" (Result: false)

  • != (Inequality):

    • Example: x != 9 (Result: true)

  • > (Greater Than):

    • Example: x > 9 (Result: false)

  • < (Less Than):

    • Example: x < 9 (Result: true)

  • >= (Greater Than or Equal To):

    • Example: x >= 9 (Result: false)

  • <= (Less Than or Equal To):

    • Example: x <= 9 (Result: true)

Logical Operators

• Description: Used to perform logical operations.

• Operators and Examples:

  • && (Logical AND):

    • Example: (x < 10 && y > 1) (Result: true)

  • || (Logical OR):

    • Example: (x == 6 || y < 1) (Result: false)

  • ! (Logical NOT):

    • Example: !(x == y) (Result: true)

• Key Points:

  • Logical operators determine the logic between variables or values.

  • They can be applied to values of any type, not limited to Boolean.

  • The result can also be of any type.

  • Assumed Values: x = 5 and y = 3.