A switch statement includes literal value or is expression based A switch statement includes multiple cases that include code blocks to execute. A break keyword is used to stop the execution of case block. A switch case can be combined to execute same code block for multiple cases.Watch...
Switch语句中的expression是需要进行匹配的表达式,value1、value2等是可能的匹配值。当expression的值与某个case的值相等时,将执行对应case后的代码块。如果没有匹配的case,可以使用default关键字定义一个默认的代码块。 Switch语句的优势在于可以简化多个if-else语句的逻辑,使代码更加清晰和易于维护。它适用于需要根据不...
Sometimes you will want different switch cases to use the same code. In this example case 4 and 5 share the same code block, and 0 and 6 share another code block: Example switch(newDate().getDay()) { case4: case5: text ="Soon it is Weekend"; ...
问具有多个cases的JavaScript Switch语句ENmatlab中switch语句看了好几本教材上的例子都未看懂核心，不知谁...
Multiple Cases Sharing Same ActionEach case value must be unique within a switch statement. However, different cases don't need to have a unique action. Several cases can share the same action, as shown here:ExampleTry this code » let d = new Date(); switch(d.getDay()) { case 1:...
Sometimes, we may want multiple case values to trigger the same block of code. For this, we can use multiple cases with a single block. Let's look at the example below to understand this clearly. // Program to categorize age let age = 19; switch (age) { // when age is 13, 14,...
instancemessagefileNamelineNumberinstancefoofooObjectinstanceprototypeErrorcaptureStackTraceErrorinstanceCustomErrorinstanceObjectprototypeprototypeObjectCustomErrorErrorCustomError.prototype.name="CustomError";try{thrownewCustomError("baz","bazMessage");}catch(e){console.error(e.name);// CustomErrorconsole.error(...
The switch statement's first line is switch (myColor). This means that it will perform its tests against the value of the myColor variable. This line is followed by a set of "cases" within curly braces. It's important to use "break" after each case - this prevents the code from run...
This causes problems when multiple case clauses attempt to define the same thing. // bad switch (foo) { case 1: let x = 1; break; case 2: const y = 2; break; case 3: function f() { // ... } break; default: class C {} } // good switch (foo) { case 1: { let x ...
SwitchStmt: a switch statement; use SwitchStmt.getExpr() to access the expression on which the statement switches; use SwitchStmt.getCase(int) and SwitchStmt.getACase() to access individual switch cases; each case is modeled by an entity of class Case, whose member predicates Case.getExpr(...