Operators JS

Arithmetic operators

These operators are used to do mathematical calculations:

• Addition operator (+)

    let x = 4;
    let y = 5;
  
    console.log(x + y);
  

• Subtraction operator (-)

    let x = 4;
    let y = 5;
  
    console.log(x - y);
  

• Multiplication operator (*)

    let x = 4;
    let y = 5;
  
    console.log(x * y);
  

• Division operator (/)

    let x = 4;
    let y = 5;
  
    console.log(x / y);
  

• Modulus operator (%)

    let x = 4;
    let y = 5;
  
    console.log(x % y);
  

• Exponentiation operator (**)

    let x = 4;
    let y = 5;
  
    console.log(x ** y);
  

Assignment operators

These operators are used to assign values to variables. They include:

• Assignment operator (=)

    let x = 5;
  

• Addition assignment operator (+=)

    let x = 4;
    x += 5;  // x = x + 5
  

• Subtraction assignment operator (-=)

    let x = 14;
    x -= 5; // x = x - 5
  

• Multiplication assignment operator (*=)

    let x = 14;
    x *= 5;  // x = x * 5
  

• Division assignment operator (/=)

    let x = 15;
    x /= 5;  // x = x / 5
  

• Modulus assignment operator (%=)

    let x = 15;
    x %= 5;  // x = x % 5
  

Comparison operators

These operators are used to compare values. They include:

• Equal to operator (==)

    5 == 5 // true
    5 == '5' // true
    'hello' == 'Hello' // false
    // This operator compares two values for equality, and returns true if they are equal, and false otherwise.
  

• Not equal to operator (!=)

    5 != 3 // true
    5 != 5 // false
    'hello' != 'Hello' // true
    // returns true if they are not equal, and false otherwise
  

• Strict equal to operator (===)

    5 === 5 // true
    5 === '5' // false
    // This operator compares two values for strict equality and returns true if they are both of the same type and have the same value, and false otherwise.
  

• Strict not equal to operator (!==)

    5 !== 3 // true
    5 !== 5 // false
    'hello' !== 'Hello' // true
    // returns true if they are either not of the same type or not the same value, and false otherwise.
  

• Greater than operator (>)

    5 > 3 // true
    5 > 10 // false
  

• Less than operator (<)

    5 < 10 // true
    5 < 3 // false
  

• Greater than or equal to operator (>=)

    5 >= 5 // true
    5 >= 10 // false
  

• Less than or equal to operator (<=)

    5 <= 10 // true
    5 <= 3 // false
  

Logical operators

These operators are used to combine or negate boolean values. They include:

• Logical AND operator (&&)

    let x = 5;
    let y = 10;
    if (x > 0 && y > 0) {
      console.log("Both x and y are positive.");
    }
    // Output: "Both x and y are positive."
  

• Logical OR operator (||)

    let x = 5;
    let y = 10;
    if (x > 0 || y > 0) {
      console.log("At least one of x and y is positive.");
    }
    // Output: "At least one of x and y is positive."
  

• Logical NOT operator (!)

    let x = 5;
    let y = 10;
    if (!(x > y)) {
      console.log("x is not greater than y.");
    }
    // Output: "x is not greater than y."