我是靠谱客的博主 尊敬八宝粥,最近开发中收集的这篇文章主要介绍airbnb JAVASCRIPT规范ARRAYS解构赋值StringsFunctionsArrow FunctionsClasses & ConstructorsModulesIterators and GeneratorsPropertiesVariablesHoisting(提升)Comparison Operators & EqualityBlocksControl StatementsCommentsWhitespaceCommasSemicolonsType Casting & Co,觉得挺不错的,现在分享给大家,希望可以做个参考。

概述

1. 常量使用const;

2. 变量使用let;

3. let 和 const 的块级作用域;

4. 不使用new来创建数组和对象;

5. 使用对象方法的简写(es6);

// bad
const atom = {
  value: 1,

  addValue: function (value) {
    return atom.value + value;
  },
};

// good
const atom = {
  value: 1,

  addValue(value) {
    return atom.value + value;
  },
};

6. 对象属性值简写,并放在前面

const obj = {
  episodeOne: 1,
  twoJediWalkIntoACantina: 2,
  lukeSkywalker,
  episodeThree: 3,
  mayTheFourth: 4,
  anakinSkywalker,
};

// good
const obj = {
  lukeSkywalker,
  anakinSkywalker,
  episodeOne: 1,
  twoJediWalkIntoACantina: 2,
  episodeThree: 3,
  mayTheFourth: 4,
};

7. 只有对象属性是无效标识符时,才会使用单引号;

// bad
const bad = {
  'foo': 3,
  'bar': 4,
  'data-blah': 5,
};

// good
const good = {
  foo: 3,
  bar: 4,
  'data-blah': 5,
};

8. 不要直接使用对象的原型方法,如 hasOwnPropertypropertyIsEnumerable, and isPrototypeOf等;因为对象可能是个NULL或者OBJECT.CREATE(NULL);最佳实践如下:

// bad
console.log(object.hasOwnProperty(key));

// good
console.log(Object.prototype.hasOwnProperty.call(object, key));

// best
const has = Object.prototype.hasOwnProperty; // cache the lookup once, in module scope.
/* or */
import has from 'has'; // https://www.npmjs.com/package/has
// ...
console.log(has.call(object, key));

9. 复制对象或者为对象添加新属性,用对象扩展符代替OBJECT.ASSIGN

// very bad
const original = { a: 1, b: 2 };
const copy = Object.assign(original, { c: 3 }); // this mutates `original` ಠ_ಠ
delete copy.a; // so does this

// bad
const original = { a: 1, b: 2 };
const copy = Object.assign({}, original, { c: 3 }); // copy => { a: 1, b: 2, c: 3 }

// good
const original = { a: 1, b: 2 };
const copy = { ...original, c: 3 }; // copy => { a: 1, b: 2, c: 3 }

const { a, ...noA } = copy; // noA => { b: 2, c: 3 }

ARRAYS

10. 使用数组扩展符代替循环浅复制数组;

// bad
const len = items.length;
const itemsCopy = [];
let i;

for (i = 0; i < len; i += 1) {
  itemsCopy[i] = items[i];
}

// good
const itemsCopy = [...items];

11. 使用数组扩展符代替ARRAY.FORM() 将可迭代对象转换为数组

const foo = document.querySelectorAll('.foo');

// good
const nodes = Array.from(foo);

// best
const nodes = [...foo];

12. 使用ARRAY.FROM()将一个像数组的对象转换为数组

const arrLike = { 0: 'foo', 1: 'bar', 2: 'baz', length: 3 };

// bad
const arr = Array.prototype.slice.call(arrLike);

// good
const arr = Array.from(arrLike);

13. 使用ARRAY.FROM代替数组扩展符来map可迭代对象或数组

// bad
const baz = [...foo].map(bar);

// good
const baz = Array.from(foo, bar);

14. 在数组方法的回调中使用return语句

// good
[1, 2, 3].map((x) => {
  const y = x + 1;
  return x * y;
});

// good
[1, 2, 3].map(x => x + 1);

// bad - no returned value means `acc` becomes undefined after the first iteration
[[0, 1], [2, 3], [4, 5]].reduce((acc, item, index) => {
  const flatten = acc.concat(item);
});

// good
[[0, 1], [2, 3], [4, 5]].reduce((acc, item, index) => {
  const flatten = acc.concat(item);
  return flatten;
});

// bad
inbox.filter((msg) => {
  const { subject, author } = msg;
  if (subject === 'Mockingbird') {
    return author === 'Harper Lee';
  } else {
    return false;
  }
});

// good
inbox.filter((msg) => {
  const { subject, author } = msg;
  if (subject === 'Mockingbird') {
    return author === 'Harper Lee';
  }

  return false;
});

解构赋值

15. 当接收多个属性的对象作为参数时,使用对象的解构赋值

// bad
function getFullName(user) {
  const firstName = user.firstName;
  const lastName = user.lastName;

  return `${firstName} ${lastName}`;
}

// good
function getFullName(user) {
  const { firstName, lastName } = user;
  return `${firstName} ${lastName}`;
}

// best
function getFullName({ firstName, lastName }) {
  return `${firstName} ${lastName}`;
}

16. 使用对象的解构赋值

const arr = [1, 2, 3, 4];

// bad
const first = arr[0];
const second = arr[1];

// good
const [first, second] = arr;

17.  当函数有多个返回值时,使用对象解构赋值而不是数组解构赋值;

// bad
function processInput(input) {
  // then a miracle occurs
  return [left, right, top, bottom];
}

// the caller needs to think about the order of return data
const [left, __, top] = processInput(input);

// good
function processInput(input) {
  // then a miracle occurs
  return { left, right, top, bottom };
}

// the caller selects only the data they need
const { left, top } = processInput(input);

Strings

18. 字符串使用单引号,当有变量或者换行时,使用重音符号;

// bad
const name = "Capt. Janeway";

// bad - template literals should contain interpolation or newlines
const name = `Capt. Janeway`;

// good
const name = 'Capt. Janeway';

19. 字符串超过100字节时,不应该换行或者折行

// bad
const errorMessage = 'This is a super long error that was thrown because 
of Batman. When you stop to think about how Batman had anything to do 
with this, you would get nowhere 
fast.';

// bad
const errorMessage = 'This is a super long error that was thrown because ' +
  'of Batman. When you stop to think about how Batman had anything to do ' +
  'with this, you would get nowhere fast.';

// good
const errorMessage = 'This is a super long error that was thrown because of Batman. When you stop to think about how Batman had anything to do with this, you would get nowhere fast.';

20.  当字符串中连接变量是使用模板字符串,而不是字符串连接; eslint: prefer-template

// bad
function sayHi(name) {
  return 'How are you, ' + name + '?';
}

// bad
function sayHi(name) {
  return ['How are you, ', name, '?'].join();
}

// bad
function sayHi(name) {
  return `How are you, ${ name }?`;
}

// good
function sayHi(name) {
  return `How are you, ${name}?`;
}

21. 不要在字符串上使用EVAL()方法;

22.  尽量不要有不必要的转义;

// bad
const foo = ''this' is "quoted"';

// good
const foo = ''this' is "quoted"';
const foo = `my name is '${name}'`;

Functions

23. 使用命名函数代替函数声明

// bad
function foo() {
  // ...
}

// bad
const foo = function () {
  // ...
};

// good
// lexical name distinguished from the variable-referenced invocation(s)
const short = function longUniqueMoreDescriptiveLexicalFoo() {
  // ...
};

24. 用括号包裹立即执行函数

// immediately-invoked function expression (IIFE)
(function () {
  console.log('Welcome to the Internet. Please follow me.');
}());

25. 不要在if或者while等无函数块的{}中声明一个函数;

26. 定义一个语句代替一个函数声明

// immediately-invoked function expression (IIFE)
(function () {
  console.log('Welcome to the Internet. Please follow me.');
}());

27. 不要使用arguments作为函数参数,否则arguments对象会有先于给出的函数作用域;

// bad
function foo(name, options, arguments) {
  // ...
}

// good
function foo(name, options, args) {
  // ...
}

28. 不要使用arguments, 使用剩余参数代替

// bad
function concatenateAll() {
  const args = Array.prototype.slice.call(arguments);
  return args.join('');
}

// good
function concatenateAll(...args) {
  return args.join('');
}

29. 使用默认参数语法

// really bad
function handleThings(opts) {
  // No! We shouldn’t mutate function arguments.
  // Double bad: if opts is falsy it'll be set to an object which may
  // be what you want but it can introduce subtle bugs.
  opts = opts || {};
  // ...
}

// still bad
function handleThings(opts) {
  if (opts === void 0) {
    opts = {};
  }
  // ...
}

// good
function handleThings(opts = {}) {
  // ...
}

30. 避免默认参数的副作用

var b = 1;
// bad
function count(a = b++) {
  console.log(a);
}
count();  // 1
count();  // 2
count(3); // 3
count();  // 3

31. 总把默认参数放在最后

// bad
function handleThings(opts = {}, name) {
  // ...
}

// good
function handleThings(name, opts = {}) {
  // ...
}

32. 不要使用函数构造器创建一个新函数

// bad
var add = new Function('a', 'b', 'return a + b');

// still bad
var subtract = Function('a', 'b', 'return a - b');

33. 注意空格在声明函数时

// bad
const f = function(){};
const g = function (){};
const h = function() {};

// good
const x = function () {};
const y = function a() {};

34. 避免错误参数

// bad
function f1(obj) {
  obj.key = 1;
}

// good
function f2(obj) {
  const key = Object.prototype.hasOwnProperty.call(obj, 'key') ? obj.key : 1;
}

35. 避免重命名参数

// bad
function f1(a) {
  a = 1;
  // ...
}

function f2(a) {
  if (!a) { a = 1; }
  // ...
}

// good
function f3(a) {
  const b = a || 1;
  // ...
}

function f4(a = 1) {
  // ...
}

36. 使用扩展运算符call可变参数函数

// bad
const x = [1, 2, 3, 4, 5];
console.log.apply(console, x);

// good
const x = [1, 2, 3, 4, 5];
console.log(...x);

// bad
new (Function.prototype.bind.apply(Date, [null, 2016, 8, 5]));

// good
new Date(...[2016, 8, 5]);

37. 多个参数的函数,每个参数应该各占一行

// bad
function foo(bar,
             baz,
             quux) {
  // ...
}

// good
function foo(
  bar,
  baz,
  quux,
) {
  // ...
}

// bad
console.log(foo,
  bar,
  baz);

// good
console.log(
  foo,
  bar,
  baz,
);

Arrow Functions

38.  当时使用匿名函数时,必须使用箭头函数

// bad
[1, 2, 3].map(function (x) {
  const y = x + 1;
  return x * y;
});

// good
[1, 2, 3].map((x) => {
  const y = x + 1;
  return x * y;
});

39. 如果函数体返回一个简单语句,省略大括号并使用隐式返回。否则使用大括号,并使用return语句。

/ bad
[1, 2, 3].map(number => {
  const nextNumber = number + 1;
  `A string containing the ${nextNumber}.`;
});

// good
[1, 2, 3].map(number => `A string containing the ${number + 1}.`);

// good
[1, 2, 3].map((number) => {
  const nextNumber = number + 1;
  return `A string containing the ${nextNumber}.`;
});

// good
[1, 2, 3].map((number, index) => ({
  [index]: number,
}));

// No implicit return with side effects
function foo(callback) {
  const val = callback();
  if (val === true) {
    // Do something if callback returns true
  }
}

let bool = false;

// bad
foo(() => bool = true);

// good
foo(() => {
  bool = true;
});

40. 为了更好的阅读,用括号()包裹多行表达式;

// bad
['get', 'post', 'put'].map(httpMethod => Object.prototype.hasOwnProperty.call(
    httpMagicObjectWithAVeryLongName,
    httpMethod,
  )
);

// good
['get', 'post', 'put'].map(httpMethod => (
  Object.prototype.hasOwnProperty.call(
    httpMagicObjectWithAVeryLongName,
    httpMethod,
  )
));

41. 如果 你的函数只有一个参数并不带大括号,可以省略参数的括号。否则,参数必须有括号,函数体也可以用圆括号;

/ bad
[1, 2, 3].map((x) => x * x);

// good
[1, 2, 3].map(x => x * x);

// good
[1, 2, 3].map(number => (
  `A long string with the ${number}. It’s so long that we don’t want it to take up space on the .map line!`
));

// bad
[1, 2, 3].map(x => {
  const y = x + 1;
  return x * y;
});

// good
[1, 2, 3].map((x) => {
  const y = x + 1;
  return x * y;
});

42. 避免在箭头函数的函数体中使用<=>=;

// bad
const itemHeight = item => item.height <= 256 ? item.largeSize : item.smallSize;

// bad
const itemHeight = (item) => item.height >= 256 ? item.largeSize : item.smallSize;

// good
const itemHeight = item => (item.height <= 256 ? item.largeSize : item.smallSize);

// good
const itemHeight = (item) => {
  const { height, largeSize, smallSize } = item;
  return height <= 256 ? largeSize : smallSize;
};

43. 强制箭头函数体隐式返回的位置

// bad
foo =>
  bar;

foo =>
  (bar);

// good
foo => bar;
foo => (bar);
foo => (
   bar
)

Classes & Constructors

44. 使用class,避免使用多个prototype

// bad
function Queue(contents = []) {
  this.queue = [...contents];
}
Queue.prototype.pop = function () {
  const value = this.queue[0];
  this.queue.splice(0, 1);
  return value;
};

// good
class Queue {
  constructor(contents = []) {
    this.queue = [...contents];
  }
  pop() {
    const value = this.queue[0];
    this.queue.splice(0, 1);
    return value;
  }
}

45. 使用extends来继承

// bad
const inherits = require('inherits');
function PeekableQueue(contents) {
  Queue.apply(this, contents);
}
inherits(PeekableQueue, Queue);
PeekableQueue.prototype.peek = function () {
  return this.queue[0];
};

// good
class PeekableQueue extends Queue {
  peek() {
    return this.queue[0];
  }
}

46.  方法总是返回this来支持链式调用

// bad
Jedi.prototype.jump = function () {
  this.jumping = true;
  return true;
};

Jedi.prototype.setHeight = function (height) {
  this.height = height;
};

const luke = new Jedi();
luke.jump(); // => true
luke.setHeight(20); // => undefined

// good
class Jedi {
  jump() {
    this.jumping = true;
    return this;
  }

  setHeight(height) {
    this.height = height;
    return this;
  }
}

const luke = new Jedi();

luke.jump()
  .setHeight(20);

47.  为类写一个普通的toString()方法保证类的正常执行

class Jedi {
  constructor(options = {}) {
    this.name = options.name || 'no name';
  }

  getName() {
    return this.name;
  }

  toString() {
    return `Jedi - ${this.getName()}`;
  }
}

48. 避免复制类成员

// bad
class Foo {
  bar() { return 1; }
  bar() { return 2; }
}

// good
class Foo {
  bar() { return 1; }
}

// good
class Foo {
  bar() { return 2; }
}

Modules

49. 在不标准的模块系统中使用import和export,可以转换到其他的模块系统;

// bad
const AirbnbStyleGuide = require('./AirbnbStyleGuide');
module.exports = AirbnbStyleGuide.es6;

// ok
import AirbnbStyleGuide from './AirbnbStyleGuide';
export default AirbnbStyleGuide.es6;

// best
import { es6 } from './AirbnbStyleGuide';
export default es6;

50. 不要使用通配符引入

// bad
import * as AirbnbStyleGuide from './AirbnbStyleGuide';

// good
import AirbnbStyleGuide from './AirbnbStyleGuide';

51. 不要从一个引入中直接导出

// bad
// filename es6.js
export { es6 as default } from './AirbnbStyleGuide';

// good
// filename es6.js
import { es6 } from './AirbnbStyleGuide';
export default es6;

52. 从单一路径引入多个模块

// bad
import foo from 'foo';
// … some other imports … //
import { named1, named2 } from 'foo';

// good
import foo, { named1, named2 } from 'foo';

// good
import foo, {
  named1,
  named2,
} from 'foo';

53. 不要导出一个可变的变量

// bad
let foo = 3;
export { foo };

// good
const foo = 3;
export { foo };

54. 导出单一模块时,尽量命名

// bad
export function foo() {}

// good
export default function foo() {}

55. 把所有的import语句放在一起,最好在文件的开头

// bad
import foo from 'foo';
foo.init();

import bar from 'bar';

// good
import foo from 'foo';
import bar from 'bar';

foo.init();

56. 多行导入应该缩进,就像多行数组和对象文本一样

57. 在模块导入语句中不允许Webpack加载器语法

// bad
import fooSass from 'css!sass!foo.scss';
import barCss from 'style!css!bar.css';

// good
import fooSass from 'foo.scss';
import barCss from 'bar.css';

Iterators and Generators

58. 不使用迭代器。用内置函数来代替for in 和for of;Use map() / every() / filter() / find() / findIndex() / reduce() / some() / ... to iterate over arrays, and Object.keys() / Object.values() / Object.entries() to produce arrays so you can iterate over objects.

const numbers = [1, 2, 3, 4, 5];

// bad
let sum = 0;
for (let num of numbers) {
  sum += num;
}
sum === 15;

// good
let sum = 0;
numbers.forEach((num) => {
  sum += num;
});
sum === 15;

// best (use the functional force)
const sum = numbers.reduce((total, num) => total + num, 0);
sum === 15;

// bad
const increasedByOne = [];
for (let i = 0; i < numbers.length; i++) {
  increasedByOne.push(numbers[i] + 1);
}

// good
const increasedByOne = [];
numbers.forEach((num) => {
  increasedByOne.push(num + 1);
});

// best (keeping it functional)
const increasedByOne = numbers.map(num => num + 1);

59. 现在不要使用生成器(es5支持不是很好)

Properties

60. 访问属性使用点号;

61. 使用中括号访问属性中的变量;

62. 计算指数时使用指数运算符**

Variables

63. 使用let或者const声明变量;

64. 每个变量或赋值使用一个const或let声明;

65. 集中使用const或者let;

// bad
let i, len, dragonball,
    items = getItems(),
    goSportsTeam = true;

// bad
let i;
const items = getItems();
let dragonball;
const goSportsTeam = true;
let len;

// good
const goSportsTeam = true;
const items = getItems();
let dragonball;
let i;
let length;

66. 将变量分配到需要它们的地方,但要将它们放在合理的位置;

67. 禁止链式的声明变量;

68. 避免使用++或者--;

69. 禁止未使用的变量;

Hoisting(提升)

70. 变量会提升至最近的函数作用域的顶部,但是赋值不会;const 和 let 是有一个暂时性死区;

71. 匿名函数表达式提升变量的名字,函数体不会提升;

function example() {
  console.log(anonymous); // => undefined

  anonymous(); // => TypeError anonymous is not a function

  var anonymous = function () {
    console.log('anonymous function expression');
  };
}

72. 命名函数表达式提升变量的名字,但是不会提升函数名字和函数体;

function example() {
  console.log(named); // => undefined

  named(); // => TypeError named is not a function

  superPower(); // => ReferenceError superPower is not defined

  var named = function superPower() {
    console.log('Flying');
  };
}

// the same is true when the function name
// is the same as the variable name.
function example() {
  console.log(named); // => undefined

  named(); // => TypeError named is not a function

  var named = function named() {
    console.log('named');
  };
}

73. 函数声明提升函数名字和函数体;

Comparison Operators & Equality

74. 使用===或者!==代替==或者!=

75. if语句判断

  • Objects evaluate to true
  • Undefined evaluates to false
  • Null evaluates to false
  • Booleans evaluate to the value of the boolean
  • Numbers evaluate to false if +0, -0, or NaN, otherwise true
  • Strings evaluate to false if an empty string '', otherwise true

76. 在switch中的case和default中使用{}

77. 三元表达式不该嵌套,使用单行表达式

// bad
const foo = maybe1 > maybe2
  ? "bar"
  : value1 > value2 ? "baz" : null;

// split into 2 separated ternary expressions
const maybeNull = value1 > value2 ? 'baz' : null;

// better
const foo = maybe1 > maybe2
  ? 'bar'
  : maybeNull;

// best
const foo = maybe1 > maybe2 ? 'bar' : maybeNull;

78. 避免不必要的三元表达式

// bad
const foo = a ? a : b;
const bar = c ? true : false;
const baz = c ? false : true;

// good
const foo = a || b;
const bar = !!c;
const baz = !c;

79. 混合运算用括号包裹

// bad
const foo = a && b < 0 || c > 0 || d + 1 === 0;

// bad
const bar = a ** b - 5 % d;

// bad
// one may be confused into thinking (a || b) && c
if (a || b && c) {
  return d;
}

// good
const foo = (a && b < 0) || c > 0 || (d + 1 === 0);

// good
const bar = (a ** b) - (5 % d);

// good
if (a || (b && c)) {
  return d;
}

// good
const bar = a + b / c * d;

Blocks

80. 使用大括号包裹多行表达式;

81. 在多行块中使用 if 和 else,把else写在 if 的关闭括号中

// bad
if (test) {
  thing1();
  thing2();
}
else {
  thing3();
}

// good
if (test) {
  thing1();
  thing2();
} else {
  thing3();
}

Control Statements

82. 如果控制语句过长,每个条件应该放在一行,逻辑运算符放在最开始。

// bad
if ((foo === 123 || bar === 'abc') && doesItLookGoodWhenItBecomesThatLong() && isThisReallyHappening()) {
  thing1();
}

// bad
if (foo === 123 &&
  bar === 'abc') {
  thing1();
}

// bad
if (foo === 123
  && bar === 'abc') {
  thing1();
}

// bad
if (
  foo === 123 &&
  bar === 'abc'
) {
  thing1();
}

// good
if (
  foo === 123
  && bar === 'abc'
) {
  thing1();
}

// good
if (
  (foo === 123 || bar === 'abc')
  && doesItLookGoodWhenItBecomesThatLong()
  && isThisReallyHappening()
) {
  thing1();
}

// good
if (foo === 123 && bar === 'abc') {
  thing1();
}

83. 不要使用选择操作符来代替控制语句。

// bad
!isRunning && startRunning();

// good
if (!isRunning) {
  startRunning();
}

Comments

84. 多行注释使用/** ... */;

85. 单行注释使用//;

86. 注释开头写一个空格;

87. 在注释的开头加FIXME或者TODE等前缀,

Whitespace

88. TAB设置2个空格;

89. 大括号前加一个空格;

90.  在控制语句中()前加一个空格,arguments lists 和 函数名后不加空格;

91. 运算符前后加空格;

92. 折行使用长的方法调用链,点号放前面;

93. 块后或者新语句空行;

94. 块中不要放置空行;

95. 不要使用多个空行来分割代码;

96. 不要在圆括号或者中括号中加空格;

97. 在花括号中加空格;

98. 避免使用过长(超过100字节)的代码;

99. 逗号前不加空格,逗号后加一个空格;

100. 避免在函数和调用之间加空格;

101. 对象属性值前加空格;

102. 避免行位空格;

Commas

103. 对象属性值后或者参数后加逗号;

Semicolons

// bad - raises exception
const luke = {}
const leia = {}
[luke, leia].forEach(jedi => jedi.father = 'vader')

// bad - raises exception
const reaction = "No! That’s impossible!"
(async function meanwhileOnTheFalcon() {
  // handle `leia`, `lando`, `chewie`, `r2`, `c3p0`
  // ...
}())

// bad - returns `undefined` instead of the value on the next line - always happens when `return` is on a line by itself because of ASI!
function foo() {
  return
    'search your feelings, you know it to be foo'
}

// good
const luke = {};
const leia = {};
[luke, leia].forEach((jedi) => {
  jedi.father = 'vader';
});

// good
const reaction = "No! That’s impossible!";
(async function meanwhileOnTheFalcon() {
  // handle `leia`, `lando`, `chewie`, `r2`, `c3p0`
  // ...
}());

// good
function foo() {
  return 'search your feelings, you know it to be foo';
}

Type Casting & Coercion

// STRING
// => this.reviewScore = 9;

// bad
const totalScore = new String(this.reviewScore); // typeof totalScore is "object" not "string"

// bad
const totalScore = this.reviewScore + ''; // invokes this.reviewScore.valueOf()

// bad
const totalScore = this.reviewScore.toString(); // isn’t guaranteed to return a string

// good
const totalScore = String(this.reviewScore);

// NUMBER
const inputValue = '4';

// bad
const val = new Number(inputValue);

// bad
const val = +inputValue;

// bad
const val = inputValue >> 0;

// bad
const val = parseInt(inputValue);

// good
const val = Number(inputValue);

// good
const val = parseInt(inputValue, 10);

// BOOLEAN
const inputValue = '4';

// bad
const val = new Number(inputValue);

// bad
const val = +inputValue;

// bad
const val = inputValue >> 0;

// bad
const val = parseInt(inputValue);

// good
const val = Number(inputValue);

// good
const val = parseInt(inputValue, 10);

Naming Conventions

104. 避免一个字母的名字;

105. 命名对象使用驼峰命名;

106. 命名类或者construtor时, 首字母大写;

107. 不要在开头或者行尾加下划线;

108. 不要保存this,使用箭头函数或者function&&bind;

109. 导出一个方法时使用驼峰命名法;

110. 导出 constructor / class / singleton / function library / bare object.时使用首字母大写;

111. 首字母缩写应该都大写或者小写;

112. 只有在导出常量(1)、常量(2)是常量(不能重新分配)和常量(3)程序员可以信任常量(及其嵌套属性)永不更改时,才可以选择大写。

Accessors

113. 如果方法或者属性是个布尔值,应该用isVal() or hasVal();

最后

以上就是尊敬八宝粥为你收集整理的airbnb JAVASCRIPT规范ARRAYS解构赋值StringsFunctionsArrow FunctionsClasses & ConstructorsModulesIterators and GeneratorsPropertiesVariablesHoisting(提升)Comparison Operators & EqualityBlocksControl StatementsCommentsWhitespaceCommasSemicolonsType Casting & Co的全部内容,希望文章能够帮你解决airbnb JAVASCRIPT规范ARRAYS解构赋值StringsFunctionsArrow FunctionsClasses & ConstructorsModulesIterators and GeneratorsPropertiesVariablesHoisting(提升)Comparison Operators & EqualityBlocksControl StatementsCommentsWhitespaceCommasSemicolonsType Casting & Co所遇到的程序开发问题。

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