1.1、分类 WhiteSpace 空白字符 LineTerminator 换行符 Comment 注释 Token 词 IdentifierName 标识符名称:典型案例就是使用的变量名,注意这里关键字也包含在内。 Punctuator 符号:使用的运算符和大括号等符号。 Nume...
1. whitespace characters In computer programming, white space is any character or series of characters that represent horizontal or vertical space in typegraphy. 在计算机程序中,空白字符指在排版中表现水平或者垂直空白的任何字符或一系列字符。 When rendered, a whitespace character does not correspond to ...
JavaScript 有两个这样的“非值”,undefined和null: undefined表示“没有值”。未初始化的变量是undefined: >varfoo;>fooundefined 复制 缺少参数是undefined: >functionf(x){returnx}>f()undefined```如果读取不存在的属性,将得到`undefined`:```js>varobj={};// empty object>obj.fooundefined```+`null`...
javascript typescript 我的检查方法有以下代码: static emptyOrWhiteSpaceString(obj: string, paramName: string) { if (obj === null || obj === '' || obj === ' ') { throw new ServiceException(`${paramName} name is empty.`); } } 我从一个评审员那里得到了这个建议: if (!obj || ...
准备工作克隆代码在github#draw.io切换需要的Tag进行下载,当前以v17.4.3为示例。本地运行安装browser-sync或其它本地服务器工具解压drawio-X.zip压缩包,使...
Whitespace19.1 Use soft tabs (space character) set to 2 spaces. eslint: indent // bad function foo() { ∙∙∙∙let name; } // bad function bar() { ∙let name; } // good function baz() { ∙∙let name; }19.2 Place 1 space before the leading brace. eslint: space-...
Whitespace18.1 tab空两格. eslint: indent jscs: validateIndentation // bad function foo() { ∙∙∙∙const name; } // bad function bar() { ∙const name; } // good function baz() { ∙∙const name; }18.2 在大括号前空一格。 eslint: space-before-blocks jscs: requireSpace...
TopLevel.getNumberOfLines() returns the total number of lines (including code, comments and whitespace) in the top-level. TopLevel.getNumberOfLinesOfCode() returns the number of lines of code, that is, lines that contain at least one token. TopLevel.getNumberOfLinesOfComments() returns the num...
For instance, whitespace before and after an element is, itself, a child node, with a nodeName of #text. For the following div element: Some text Some more text The demodiv element (node) has five children, not two: has child #text has child P has child #text has child P has...
The min part means that the file isminimized—a process that removes unneeded whitespace and condenses the code to make the file smaller so that it downloads faster. Press Return to create a new blank line, and then type: HTML tags...