您可以链接if else语句: if(condition_1) {// statments}else if(condition_2) {// statments}else{// statments} 例如,以下脚本比较两个数字 a 和 b,如果 a 大于、小于或等于 b,则显示相应的消息。 leta =10,b =20;if...
no-else-return 现在,我们可以使用以下no-else-return语句简化此函数,因为无论如何我们返回的都是null: letnoElseReturns =(str) =>{if(typeofstr =="string"){if(str.length >1) {returnstr.slice(0,-1)}}returnnull}noElseReturns("")// =...
if-else 语法 JavaScript中if语句后跟else的语法是: if(condition) {// statements to execute when condition is TRUE}else{// statements to execute when condition is FALSE} 在此判断JavaScript表达式。如果结果值为true,则执行'if'块中的给定语句。如果表达式为假,则执行else块中的给定语句。 else if 语法 ...
console.log('x is greater than 10'); } else { console.log('x is less than or equal 10'); } 1. 2. 3. 4. 5. 6. 您可以链接if else语句: if (condition_1) { // statments } else if (condition_2) { // statments } else { // statments } 1. 2. 3. 4. 5. 6. 7...
Note: Avoid nesting multiple if…else statements within each other to maintain code readability and simplify debugging.More on JavaScript if...else Statement When can we use the ternary operator instead of an if…else statement? We can use the ternary operator ?: instead of an if...else ...
5种在JavaScript函数中重构If / Else语句的方法 英文| https://betterprogramming.pub/5-ways-to-refactor-if-else-statements-in-javascript-functions-2865a4bbfe29 翻译| 小爱 在本文中,我将介绍5种通过不必要的if-else语句来整理代码的方法。我将讨论默认参数,或(||)运算符,空位合并,可选链no-else-returns...
In JavaScript we have the following conditional statements: Useifto specify a block of code to be executed, if a specified condition is true Useelseto specify a block of code to be executed, if the same condition is false Useelse ifto specify a new condition to test, if the first condit...
In JavaScript we have the following conditional statements:Use if to specify a block of code to be executed, if a specified condition is true Use else to specify a block of code to be executed, if the same condition is false Use else if to specify a new condition to test, if the ...
在JavaScript中,else-if语句是一个条件语句,用于在满足多个条件时执行不同的代码块。然而,如果两个else-if语句连续出现,可能会导致错误。 问题出现的根本原因是else-if语句的语法错误。在JavaScript中,else-if应该写作"else if",而不是"else-if"。正确的语法是使用"else if"来连接多个条件,如下所示: 代码语言:...
If its good weather we’re going to the beach today, else if it’s raining we’re staying home. In fact, we based most of our choices on if then else statements. So it’s no wonder programmers rely on conditional statement to write logical useful code. Actually, I would say that con...