At times there might be cases wherein you have to evaluate multiple cases to match with the result of the expression given as input. At that time, the use of switch statements is preferable as it gives more readability and also reduces the amount of code that has to be written. Also whe...
具有多个cases的JavaScript Switch语句 JavaScript中的Switch语句是一种条件语句,用于根据不同的条件执行不同的代码块。它可以替代多个if语句,使代码更加简洁和可读性更强。 Switch语句的基本语法如下: 代码语言:txt 复制 switch (expression) { case value1: // 当expression等于value1时执行的代码块 break; case val...
JavaScript Switch Case Default Thedefaultstatement is executed if the switch expression output does not match with any of the given cases. In the below example we have shown this scenario: With this, we have covered the JavaScript switch statement. Althoughifelsestatements are popular and used in...
function add(_case, fn) { callbacks[_case] = callbacks[_case] || []; callbacks[_case].push(fn); } // this function work like switch(value) // to make the name shorter you can name it `cond` (like in scheme) function pseudoSwitch(value) { if (callbacks[value]) { callbacks[val...
Switch statement multiple cases in JavaScript (Stack Overflow)Multi-case : single operationThis method takes advantage of the fact that if there is no break below a case clause it will continue to execute the next case clause regardless if the case meets the criteria. (See the section What ...
因此，您可以将这些值存储在ArrayList<String>中，并根据索引将它们设置到页面switch只能比较数值或字符或者...
Multiple cases can be combined in a switch statement.Example: Combined switch Cases Copy var a = 2; switch (a) { case 1: case 2: case 3: alert("case 1, 2, 3 executed"); break; case 4: alert("case 4 executed"); break; default: alert("default case executed"); } Try it ...
Switch statement multiple cases in JavaScript (Stack Overflow) Multi-case - single operation This method takes advantage of the fact that if there is no break below a case statement it will continue to execute the next case statement regardless if the case meets the criteria. See the section ...
constsidekick='Nightwing';lethero;switch(sidekick){// The 'Robin' and 'Nightwing' cases are "fallthrough" `case`// statements. They execute the same code block as the 'Bluebird'// case.case'Robin':case'Nightwing':case'Bluebird':hero='Batman';break;case'Aqualad':case'Tempest':hero='Aqua...
//this code will execute if none of the cases match the expression break; 如果多个案例与switch语句匹配,则将使用与expression匹配的第一个case。 breakcase匹配时,语句将从switch中中断。如果不存在break语句,那么即使找到匹配项,计算机也会继续通过switch语句。