JavaScript Switch Statements
A switch statement is a control flow statement that tests the value of an expression against a series of case clauses. The switch statement executes the block of code associated with the first case clause whose value matches the expression. If no case clause matches the expression, the default clause is executed.
The syntax for a switch statement in JavaScript is as follows:
switch (expression) {
case value1:
// Block of code to be executed if expression == value1
break;
case value2:
// Block of code to be executed if expression == value2
break;
...
default:
// Block of code to be executed if expression does not match any of the case clauses
}The break statement is used to exit the switch statement. If the break statement is not used, the code will continue to execute the next case clause, even if the value of the expression does not match.
The default clause is optional. If the default clause is not present, and the expression does not match any of the case clauses, the switch statement will simply fall through to the next statement in the code.