Assignment Operators

• JavaScript’s assignment operators are used to assign variables to different values. Assignment operators each have a symbol known as the operator that is used to perform the operation.

1. Equals : used to assign a variable to a value

• Operator: =

• Examples:

  let example = 5;
  let name = "Alex";
  name = example;
  

• Q : What is the value of the variable named “name”?

  2. Plus-Equals : assigning a variable to its original value plus some specified value

• Operator: +=

• Examples:

  x = 5;
  y = 30;
  x += 10;
  x += y;
  y += x;
  

• Q : What is the value of variable y?

  3. Minus-Equals : assigning a variable to its original value minus some specified value

• Operator: -=

• Examples:

  x = 50;
  y = 23;
  x -= 12;
  x -= y;
  y -= x;
  

• Q : What is the value of variable y?

  4. Times-Equals : assigning a variable to its original value times some specified value

• Operator: *=

• Examples:

  x = 13;
  y = 9;
  x *= 3;
  x *= y;
  y *= x;
  

• Q : What is the value of variable y?

  5. Divide-Equals : assigning a variable to its original value divided by some specified value

• Operator: /=

• Examples:

  x = 348;
  y = 24;
  x /= 58;
  y /= x;
  

• Q : What is the value of variable y?

  6. Modulus-Equals : assigning a variable to its original value modulus some specified value

• Operator: %=

• Examples:

  x = 49;
  y = 17;
  x %= 12;
  y %= x;
  

• Q : What is the value of variable y?

  Exercise 2.2

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