静态方法

• 疑问：比较 MediaSource.prototype 与 Array.isArray()

Array.isArray() 静态方法?，可在 chrome 打印出来并不是灰色

MediaSource.isTypeSupported() 静态方法，在 chrome 打印出来是亮色

类型或者构造函数	arguments	caller	length	name	prototype	proto	[[Scopes]]
String			1	String
Boolean			1	Boolean
Number			1	Number
Object			1	Object
Array			1	Array
Symbol			0	Symbol
MediaSources

String 方法

• fromCharCode
• raw

Boolean

Number

• EPSILON:2.220446049250313e-16
• MAX_SAFE_INTEGER: 9007199254740991
• MAX_VALUE:1.7976931348623157e+308
• MIN_SAFE_INTEGER: -9007199254740991
• MIN_VALUE:5e-324
• NEGATIVE_INFINITY: -Infinity
• NaN: NaN
• POSITIVE_INFINITY: Infinity
• isFinite()
• isInteger()
• isNaN()
• isSafeInteger()
• parseFloat()
• parseInt()

Object

• assign()
• create()
• defineProperties()
• defineProperty()
• entries()
• freeze()
• getOwnPropertyDescriptor()
• getOwnPropertyDescriptors()
• getOwnPropertyNames()
• getOwnPropertySymbols()
• getPrototypeOf()
• is()
• isExtensible()
• isFrozen()
• isSealed()
• keys()
• preventExtensions()
• seal()
• setPrototypeOf()
• values()

Array

• from()
• isArray()
• of()
• Symbol(Symbol.species)
• get Symbol(Symbol.species):()

Symbol

• asyncIterator
• for()
• hadInstance
• isConcatSpreadable
• iterator
• keyFor()
• match
• replace
• search
• species
• split
• toPrimitive
• toStringTag
• unscopables

WebSocket

• CLOSED:3
• CLOSING:2
• OPEN:1
• CONNECTING:0

MediaSources

• isTypeSupported() 静态方法

Audio

Vidio

Canvas