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...
When JavaScript reaches abreakkeyword, it breaks out of the switch block. This will stop the execution inside the switch block. It is not necessary to break the last case in a switch block. The block breaks (ends) there anyway. Note:If you omit the break statement, the next case will ...
The switch statement is used to perform different actions based on different conditions.The JavaScript Switch StatementUse the switch statement to select one of many blocks of code to be executed.Syntaxswitch(expression) { case n: code block break; case n: code block break; default: default ...
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In JavaScript switch statement allows us to make a decision from the number of choices. If a match is found to a case label, the program executes the associated statement.
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 ...
statementsN // 当表达式的结果等于 valueN 时,则执行该代码 break; default : statements // 如果没有与表达式相同的值,则执行该代码 } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. switch 语句根据表达式的值,依次与 case 子句中的值进行比较: ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 switch (expression) { case value1: statement break; case value2: statement break; default: statement } 这里的每个 case 相当于:“如果表达式等于后面的值,则执行下面的语句。”break关键字会导致代码执行跳出 switch 语句。如果没有 break,则代码会继续...
JavaScript Switch statement is used to execute different set of statements based on different conditions. The switch expression is evaluated and each case value is matched against it. When there is a match for a case value, the corresponding set of state
Visually the statements appear much more cohesive and more similar to other control structures (for-loop, if-statement, etc.) The braces create a block scope, this means that you can define unique, scoped variables vialetwithout bumping into the statements in other cases. ...