Examples demonstrating Switch case in JavaScript 1st Example: In the first example, we find the remark associated with a particular grade. The code is used in a school system to find out the correct remark for a particular grade in the range from ‘a’ to ‘f’, any other letter is not...
JavaScript switch case语句在我们之前的文章中,我们已经学习了如何在JavaScript中使用if-else语句进行决策。我们已经看到,我们可以使用if-else语句基于特定条件执行某些任务,如果条件为真,执行任务A,如果条件为假,执行任务B。在JavaScript中,switch case语句也用于决策目的。在某些情况下,使用switch case语句比if-else语句...
Switch case and if-else offer two different approaches to writing conditional statements in JavaScript. Here’s how to determine which one to use.
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 associated code of the case that gets matched continues to execute. It continues to evaluate all the cases until the case gets matched with the result of the...
If none of the case values match, the code block in the default block is executed. Let's try to understand this process with a flowchart below. Flowchart of switch Statement Flowchart of JavaScript switch statement Example 1: Simple Program Using switch...case Suppose we want to display ...
The basic JavaScript switch syntax: switch(expression){ case value: expression; break; case value: expression; break; default: Expression;} Following the logic of the example syntax, this sequence of events take place. The expression is evaluated ...
正则表达式是一种用于匹配字符串的模式,可以用于搜索、替换等操作。在JavaScript中,可以使用RegExp对象来创建正则表达式。 在JavaScript中,可以使用正则表达式作为switch c...
确保你不会忘记break块末尾的语句,如果你不放一个break结尾的声明case块,JavaScript 将失败到下一个case. consthero='Batman';letsidekick;switch(hero){case'Batman':sidekick='Robin';// Unless there's a `break`, JavaScript will execute the next// `case` block.// break;case'Aquaman':sidekick='Aqu...
Simple example code test multiple conditions in a JavaScript switch statement. Here is theOR condition, anyone true will execute the case block. <!DOCTYPE html> let var1 = 2; let var2 = 2; switch(true) { case var1 === 1 |...
In the above example, switch statement includes an expression a/3, which will return 1 (because a = 3). So, case 1 will be executed in the above example. The switch can also contain string type expression.Example: switch with String Type Case Copy var str = "bill"; switch (str) {...