We reviewed the switch statement with three different examples. Output In today tutorial, we review about the switch, and how it is similar to if.else if statement. In this example first, the new Date() method will find a number compared to the current month and then apply the month variable.
So, we have made an example for you to understand these multiple cases. There is a chance that you may face a code in which you have to display the same output for multiple cases. Multiple Cases in JavaScript Switch Statement I have added default too in case of any error. But your output would be change depending on the day you are testing.
OutPut This code was tested on Monday that’s why it is displaying Monday. 0 stand for Sunday, 1 stand for Monday and then throughout till Saturday with number 6. In this example, we will find the current day of the week with the new Date () method and getDay () to print a number equivalent to the current day. Output Let’s make another example of a working switch. And your output will be displayed like this. Since 4 matches the expression, the code will execute and exit out of the switch block. Then case 4 will be tested against the expression. The code will not execute because it does not match the expression and it will be skipped. The first case, 3 will be tested against the expression. Firstly, the expression will be evaluated. Let’s see an example of a switch statement. The default keyword is optional, but it is recommended that you use it. There could be only one default keyword in the switch statement. Default Keyword in JavaScript Switch Statement If there is no case match then the default code block will run. Eventually, reach the last case and the break keyword will end the switch block.
It will continue until reaching the last break case. It will only stop the execution of inside the block. Syntax switch (expression) Break Keyword in JavaScript Switch Statement As the name says break, When JavaScript reaches the break keyword, it breaks out of the switch block. If there would be a match, the associated block of code will execute.Value of expression will be compared with each case.Switch Statement in JavaScript The switch statement is used to perform different action based on multiple cases. The switched statement work almost as if.else if statement containing many blocks, and it does work so more efficiently than repeated if.else if statements.
Switch is also a type of conditional statement and it will evaluate an expression against multiple possible cases and run one or more blocks of codes base on matching cases. As we have learned about the conditional statement and its types (if, if.else, If.else if ) in the last article, a conditional statement is the most useful and common feature in the programming language. It’s our 6th tutorial in JavaScript Series. In today’s tutorial, we will have a look at the detailed “ Switch Statement in JavaScript ”. Hello friends, I hope you all are doing great.
0 kommentar(er)
