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 ...
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...
If multiple cases matches a case value, thefirstcase is selected. If no matching cases are found, the program continues to thedefaultlabel. If no default label is found, the program continues to the statement(s)after the switch. Strict Comparison ...
Use the switch statement to execute one of many code blocks based on a variable or expression's value. The switch expression is evaluated once. The comparison value will match either a statement value or trigger a default code block. Switch statement is used as an alternate to multiple if ....
switch-case语句的一般表达形式为： switch〈选择判断量〉 Case 选择判断值1 选择判断语句1 case 选择判...
Here, the switch statement checks the value of day against a series of cases: First, it checks day against case 1. Since it doesn't match, this case is skipped. Next, it checks day against case 2. Since it doesn't match, this case is skipped. Then, it checks day against case 3....
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:...
switch(yourUseCase) {case'large_number_of_conditions':case'single_variable_evaluation':case'multiple_discrete_values':console.log('Consider using a switch statement.');break;case'complex_conditions':case'range_based_conditions':case'non_constant_cases':console.l...
In addition toif...else, JavaScript has a feature known as aswitchstatement.switchis a type of conditional statement that will evaluate an expression against multiple possible cases and execute one or more blocks of code based on matching cases. Theswitchstatement is closely related to a conditio...
JavaScript switch 语句是一种根据不同条件在代码中做出判断的方法。 它与使用多个 if-else 语句相比,它更具有组织性、代码更简洁。