Example 1: Simple Program Using switch...case Suppose we want to display a message based on the current day of the week. Let's look at the example below to see how we can achieve this usingswitch...case. letday =3;letactivity;switch(day) {case1:console.log("Sunday");break;case2:...
https://www.freecodecamp.org/news/javascript-switch-case-js-switch-statement-example/ Activity Dario-DCadded italian on Apr 15, 2024 Dario-DC commented on Apr 15, 2024 Dario-DCon Apr 15, 2024 ContributorAuthor menzionato alla fine di https://www.freecodecamp.org/italian/news/ghost/#/...
You have to use thelogical OR, AND operatorsin the switch case to use multiple values in JavaScript. JavaScript switch case multiple values Simple example code test multiple conditions in a JavaScript switch statement. Here is theOR condition, anyone true will execute the case block. <!DOCTYPE h...
The switch expression is evaluated once. The value of the expression is compared with the values of each case. If there is a match, the associated block of code is executed.Example The getDay() method returns the weekday as a number between 0 and 6. (Sunday=0, Monday=1, Tuesday=2 ...
switch(newDate().getDay()) { case6: text ="Today is Saturday"; break; case0: text ="Today is Sunday"; break; default: text ="Looking forward to the Weekend"; } Try it Yourself » Example Sometimes you will want different cases to use the same code, or fall-through to a common...
Like an example shown above, we can use the switch statement for multiple cases making our work easier. c. Using switch to find the type let a = 5; switch (a) { case 1: a = 5; break; case 5: a = 'five'; break; case 3: a = 'V'; break; case “four”: a = 'FIVE';...
Now, let's use the switch statement for the same purpose. let grade = "C"; // using switch...case switch (grade) { // first condition case "A": console.log("Excellent!"); break; // second condition case "B": console.log("Good!"); break; // third condition case "C": conso...
2、switch语句相对if较快 通过将case语句按照最可能到最不可能的顺序进行组织。 3、位运算较快 当进行数字运算时,位运算操作要比任何布尔运算或者算数运算快。 4、巧用||和&&布尔运算符 function eventHandler(e) { if (!e) e = window.event; } //可以替换为: function eventHandler(e) { e = e ||...
正则表达式是用于匹配字符串字符组合的模式,在JavaScript中,正则表达式也是对象。 正则表通常被用来检索、替换那些符合某个模式(规则)的文本,例如验证表单:用户名表单只能输入英文字母、数字或者下划线, 昵称输入框中可以输入中文(匹配)。此外,正则表达式还常用于过滤掉页面内容中的一些敏感词(替换),或从字符串中获取我们...
JavaScript Switch Statement Example <!-- your JavaScript goes here --> <!-- try changing the data in "value" and run --> var value=2; var message=''; switch(value){ case 1: message += "Value is 1."; break; case 2: message += "Value is 2."...