Switch Case Javascript

It is not necessary to break the last case in a switch block.

Switch case javascript. When javascript reaches a break keyword it breaks out of the switch block. This will stop the execution of inside the block. If you omit the break keyword the code execution falls through the original case into the next one.

The switch case statement in javascript is also used for decision making purposes. Javascript switch case you can use multiple if elseâ if statements as in the previous chapter to perform a multiway branch. The break keyword causes the execution to jump out of the switch statement.

The switch statement evaluates an expression matching the expression s value to a case clause and executes statements associated with that case as well as statements in cases that follow the matching case. Consider a situation when we want to test a variable for hundred different values and based on the test we want to execute some task. If the expression does not match any value the.