JavaScript+Operators

JavaScript Operators

Overview

• Operators in JavaScript are special symbols that perform operations on variables and values.

Arithmetic Operators

• These operators are used to perform basic mathematical operations.

  • Operator Descriptions 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,

      • Example: X=5, Y=2; X/Y

      • Result: 2.5

    • % (Modulus):

      • Example: 5%2, 10%8, 10%2

      • Results: 1, 2, 0

    • ++ (Increment):

      • Example: X=5; X++

      • Result: X=6

    • -- (Decrement):

      • Example: X=5; X--

      • Result: X=4

Assignment Operators

• These operators are used to assign values to variables.

  • Operator Examples (is the same as):

    • =

      • Example: x=y

    • +=

      • Example: x+=y

      • Equivalent to x= x + y

    • -=

      • Example: x-=y

      • Equivalent to x= x - y

    • *=

      • Example: x*=y

      • Equivalent to x= x * y

    • /=

      • Example: x/=y

      • Equivalent to x= x / y

    • %=

      • Example: x%=y

      • Equivalent to x= x % y

Comparison Operators

• These operators are used to compare two values.

  • Operator Descriptions and Examples:

    • == (is equal to):

      • Example: x==9

      • Result: false

    • === (is exactly equal to):

      • Example: x==5 is true

      • Example: x=="5" is false

    • != (is not equal):

      • Example: x!=9 is true

    • > (is greater than):

      • Example: x>9 is false

    • < (is less than):

      • Example: x<9 is true

    • >= (is greater than or equal to):

      • Example: x>=9 is false

    • <= (is less than or equal to):

      • Example: x<=9 is true

  • Note: Assume x=5

Logical Operators

• Logical operators are used to determine the logic between variables or values. They can operate on non-Boolean values as well.

  • Operator Descriptions and Examples:

    • **&& (AND