Instead, we look forward to using the greater than and smaller than functions. There might be some cases where we don’t evaluate a fixed value. At times there would be cases where the use of switch statements is preferable and at times the use of if-else statements is preferable.
#Java script switch code#
When the default case is not present, it starts executing the code written below.When none of the cases gets matched with the result of input, it starts executing the code associated with the default case.After some of the cases get matched, it starts executing the code associated with the code.It evaluates the input and starts matching with the cases written in the code.Firstly there should be an expression given to switch as an input.> The value is five Summary of how switch statements work Given below is a basic syntax using switch statements. It has cleaner syntax than that of statements with if-else. Only after equality does it continues to execute the associated code with the case. The switch statement always checks for strict equality (=) to the result of the expression given as an input and the case. At that time the switch statement continues to evaluate the case written below. There might be cases where we omit the break statement after a case. The break statement after each case ensures that the program gets broken out once the case gets matched with the result of the expression given as an input. At such times, the switch continues to execute the code written in the place below the switch statement. There would be some cases where the default case is not found.
The switch statement continues to execute the default case if provided when no case gets matched with the result of the expression given as an input. Even if multiple cases get matched with that the result of the expression given as an input, the associated code of the first case gets executed and the rest would get neglected in all the cases if the break statement precedes the next case. It continues to evaluate all the cases until the case gets matched with the result of the expression given as an input. The associated code of the case that gets matched continues to execute. Firstly, it evaluates the first case in the list of cases written in the code to the result of the expression given as an input. The first and foremost action the switch statement does is to evaluate the expression. Now let us study about switch case in JavaScript. The cleaner syntax of the switch statement makes it preferable over using long conditional expressions. There are some such cases where we prefer using a switch statement instead of if-else. You might be guessing why there are two keywords with the same functionality. Its functionality matches that of the if-else statement. The switch is a statement used to perform actions based on conditions.
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