Here we see a basic switch statement: let emoji = '□' switch (emoji) // Best show ever!Īs you can see switch statement gets very useful. Personally, I find myself using switch in various programming languages quite often. Today I want to walk through the switch statement, of-course everyone knows the basic if.else statements and if you have been around for a while you learned those can get really out of hand. In switch case statement, we should always write default at the end, if no matching case found then the default block will be executed.Learn all about the amazing Vanilla JavaScript Switch statement 5 Apr, 2020 If switch case value is string, then we need to use “case-1” for each case. In switch case can be any data type, normally we use integer or string, above is the example of an integer switch case Javascript Switch case statement is a type of conditional logic, what switch case does, you can also do same thingusing if else in javascript,but switch case is much faster in terms of performance. We can call multiple functions easily for any case within switch case statement, that really help writing clean and maintainable code.The break keyword indicates when there any matching case executed and hit the break keyword, the logic will come out of switch, it will not check for next case.We can define default case using default keyword, so when there is no matching case the default will get executed.We can execute same code block for multiple cases (if required). Switch case get executed faster than if-else statement, especially there are multiple conditions.Switch case is a conditional statement just like if-else.To understand when to use switch case in javascript programming, you need to know following characteristic. Here you learn how to write switch case statement in JavaScript.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |