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Q: Does Javascript switch case can have multiple cases or 2 values? code. A Switch case statement is more convenient over if-else statements and an easy way to dispatch execution to different parts of code based on the value of the expression. The expression is nothing but a conditional statement returning the appropriate value to be compared. By using our site, you acknowledge that you have read and understand our
Each case in the switch statement executes the corresponding statement ( statement_1, statement_2 ,…) if the expression equals the value ( value_1, value_2, …). The block breaks (ends) there anyway.If today is neither Saturday (6) nor Sunday (0), write a default message:
The break keyword causes the execution to jump out of the switch statement. Stack Overflow works best with JavaScript enabled
A switch will catch all the falsy values separately.
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.
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Prompt returns a string and you were initially comparing against a number. I would recommend the above only when you have a lot of conditions Untested and unsure if this will work, but why not do a few Updating the accepted answer (can't comment yet). If there is a match, the associated block of code is executed. Example. At first it can look a bit intimidating, but the basic syntax is similar to that of an if statement. The switch statement executes a block of code depending on different cases.The switch statement is a part of JavaScript's "Conditional" Statements,
When I looked at the solutions in the other answers I saw some things that I know are bad for performance.
The switch statement is a part of JavaScript's "Conditional" Statements, which are used to perform different actions based on different conditions. ...):If today is neither Saturday nor Sunday, write a default message:Sometimes you will want different cases to use the same code, or fall-through to a common default.Note that in this example, the cases share the same code block, and that the default case does not have to be the last case in a switch block (however, if Using the switch statement to execute a block of code based on user input, from a prompt box:If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:
This is about 6 to 40 times slower than the fastest in all tested environments except The switch expression is evaluated once. 25ms "if-immediate" 150878146 29ms "if-indirect" 150878146 24ms "switch-immediate" 150878146 128ms "switch-range" 150878146 45ms "switch-range2" 150878146 47ms "switch-indirect-array" 150878146 43ms "array-linear-switch" 150878146 72ms "array-binary-switch" 150878146 Finished The switch case statement in JavaScript is also used for decision making purposes. While using this site, you agree to have read and accepted our your coworkers to find and share information. The value of the expression is then compared with the values of each case in the structure. Examples of Case Statement in JavaScript are as follows: Example 1. var x = 1; switch (x) {case 0: console.log(“Zero”); break; case 1: But for 3, the result of the prompt is a string "3", which is not strictly equal === to the number 3. In the example, you can try with different values (1, 2, 3) and the result will be an alert box with a message. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.