Javascript switch statement is used to perform different actions based on various conditions. You can use multiple if…else…if statements, but it is a little bit cumbersome instead you can use the switch statement to execute the code based on conditions. In one function, you can handle multiple conditions using a switch statement.

The switch statement which handles this situation precisely, and it does so more efficiently than repeated if…else if statements.

Javascript Switch Statement

See the following syntax.

switch(expression) {
  case x:
    // code block
    break;
  case y:
    // code block
    break;
  default:
    // code block
}

This is how a switch statement works:

• The switch expression is evaluated once at the beginning.
• The value of the expression is compared with the other values of each case in a switch statement.
• If there is a match found, the associated block of code is executed.

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