var str = "example"; if (str === "example1") { // 执行与"example1"匹配的代码块 } else if (str === "example2") { // 执行与"example2"匹配的代码块 } else if (str === "example3") { // 执行与"example3"匹配的代码块 } else { // 执行默认的代码块 } ...
Try Online Note: Please note that there isbreakstatement at the end of everycaseblock. Failing to provide a break statement results in not breaking of switch statement.This makes the subsequent case blocks executed. Following is an example demonstrating such scenario, where break is not used for...
is equivalent in JavaScript to: function authReducer(state = authState, action) {// omit default: return state; }} What's my point then? Let's apply the same Pythonic style to JavaScript. An alternative to switch Consider again the previous example: const LOGIN_SUCCESS = "LOGIN_SUCCESS";...
Example letx ="0"; switch(x) { case0: text ="Off"; break; case1: text ="On"; break; default: text ="No value found"; } Try it Yourself » Exercise? Which one is NOT a keyword in theswitchstatement? switch break continue ...
. Depending on what day of the week you are testing the code, your output will be different. We have included adefaultblock at the end to run in case of an error, which in this case should not happen as there are only 7 days of the week. We also could have, for example, only ...
class SwitchExample { public static void main(String args[] ) throws IOException { BufferedReader k=new BufferedReader(new InputStreamReader (System.in)); String h; int n; System.out.println(“Enter a value between 1 and 4 “);
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';...
JavaScript Switch Statement and Value Ranges There have been several cases in my career when I needed to display different messages or maybe color indicators based on values. A good example is a dashboard to indicate the state of a system or key performance indicators. ...
Note from the next example, that cases can share the same code block, and that the default case does not have to be the last case in a switch block:Example switch (new Date().getDay()) { case 1: case 2: case 3: default: text = "Looking forward to the Weekend"; break; ...
If none of the case values match, the code block in thedefaultblock is executed. Let's try to understand this process with a flowchart below. Flowchart of switch Statement Flowchart of JavaScript switch statement Example 1: Simple Program Using switch...case ...