functionquote(str,config){const{char='"',skipIfQuoted=true}=config;constlength=str.length;if(skipIfQuoted&&str[0]===char&&str[length-1]===char){returnstr;}returnchar+str+char;}quote('Hello World',{char:'*'});// => '*Hello World*'quote('"Welcome"', { skipIfQuoted: true }); ...
mozilla.org/zh-CN/docs/Web/JavaScript/Guide/Grammar_and_types#%E5%9F%BA%E7%A1%80 JavaScript 是区分大小写的,并使用 Unicode 字符集。举个例子,可以将单词 Früh (在德语中意思是“早”)用作变量名。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 var Früh = "Ken"; var früh = "ken...
8-4.js let insocAlbums = {'first': 'Information Socieity', 'second'': 'Hack', 'thrid': 'Peace and Love Inc.'}; function groupBand(albums){ console.group("Album List"); console.log('first:' , albums.first); console.log('second:' , albums.second); console.log('thrid:' , alb...
When you write code, you will often need to use conditional statements, such as "if" statements. Here's an explanation of the JavaScript If statement.A conditional statement refers to a piece of code that does one thing based on one condition, and another based on another condition. In ...
Javascript Statement if Javascript examples for Statement:if HOME Javascript Statement if
In all the programming languages I’ve come across, the If statement is extensively used for this purpose.It’s actually quite simple to use the if statement and here is the format of an if statement. if (condition) { statements to execute } When JavaScript encounters an if statement, ...
StatementDescription breakBreaks out of a loop continueSkips a value in a loop whileLoops a code block while a condition is true do...whileLoops a code block once, and then while a condition is true forLoops a code block while a condition is true ...
1 JavaScript的组成和书写位置 Javascript:运行在客户端(浏览器)的脚本语言,JavaScript的解释器被称为JavaScript引擎,为浏览器的一部分,与java没有直接的关系。 Java:服务器端的编程语言。 API:Application Programming Inte
参考链接:All about IF statements and booleans in JavaScript! – Code The Web What is an if statement? In essence, an if statement simply executes some code if a value is equivalent to true. The if statement syntax if(true){alert('Yay!');} ...
'a simple statement'; 虽然JavaScript引擎通常能够在行结束时自动识别语句的结尾,但在代码中使用分号来明确结束语句是一种良好的编程实践。 注释的使用 注释用于解释代码,可以使代码更易于理解。在JavaScript中,单行注释由两个斜线//开始,而多行注释以一个斜线和星号/*开头,并以星号和斜线*/结尾。 // 这是单行...