201505061055_ "JavaScript Coding specification Notes"

I. Preface. The code of conduct for browser-side programming. Typescript also try to follow this rule.

Two. Code style.

2.1 no BOM UTF-8 coding;

2.2 Add a blank line at the end of the file;

2.2 Use a 4 space as an indent level

2.3 Two unary operators must have a space on each side, and no spaces between the unary operator and the operand object

2.4 The left Curly brace must have a space before it;

2.5 keywords must have a space after;

2.6 When the object is created, : there must be a space after the attribute, and : no spaces are allowed before;

2.7 After the function name parameter "(" cannot have the space;

No spaces are allowed in 2.8 () and [];

2.9 No more than 120 one character per line;

When the 3.0 operator wraps, the operator must be at the beginning of the new line;

3.1 A set of statements of different behavior or logic, separated by blank lines, and easier to read;

3.2 put ") {" On one line;

3.3 The mix of arrays and object initialization is written strictly in the style of each object's {and end} in a separate line.

such as: Var array=[

{

DoSomething ...

},

{

//dosomething ...

}

]；

3.4 for if...else... , and try...catch...finally so on, it is recommended to } add a newline style after the tail number

if (condition) {

//dosomething ...

}

else {

//dosomething ...

}；

3.5 End of function definition does not allow the addition of semicolons

For example: function () {

Dosometing

}

Three. naming

3.1 变量 use Camel命名法 ;

常量 全部字母大写，单词间下划线分隔 The naming method used by 3.2;

3.3 类 use Pstringascal命名法 ; for example: Catclass;

3.4 枚举变量 Use Pascal命名法 , 枚举的属性 全部字母大写，单词间下划线分隔 The use of the naming method;

3.5 命名空间 Use Camel命名法 ;

3.6 类名 Use 名词 ;

3.7 函数名 Use动宾短语;

booleana variable of type 3.8 is used is or has prefaced;

3.9 Promise对象 with 动宾短语的“进行时” expression;

Four. Notes

4.1 // followed by a space;

4.2 A blank line must be before the document comment;

4.3 Document Description What, not how;

4.4 {Array<string>} array of type string;

{(Number|boolean)} multi-type;

{? Number} is allowed to be null;

{! Object} is not allowed to be null;

{function (number, Boolean): string}, formal parameter, return value type;

@param {string=} name optional parameter, = type suffix;

@param {... number} args variable length parameter, ... prefix for type;

{*} any type;

@param {*=} name optional any type;

@param {... *} args to grow any type;

4.5 The top of the file must include a file comment, with the @file和@author等 identification file description;

4.6 Using @extends The inheritance information of the tag class;

4.7//null or undefined

Good
if (Novalue = = null) {
// ......
}

Five.

201505061055_ "JavaScript Coding specification Notes"