JavaScript 指南向您介绍如何使用 JavaScript，并且给出了语言概述。如果您需要了解某些语言特性的详尽资料，请参阅JavaScript 参考文档。
章节
本指南分为以下章节：
另见
- JavaScript
- 教程:
- 快速入门
- JavaScript 指南
- Introduction
- Grammar and types
- Control flow and error handling
- Loops and iteration
- Functions
- Expressions and operators
- Numbers and dates
- Text formatting
- Regular expressions
- Indexed collections
- Keyed collections
- Working with objects
- Details of the object model
- Iterators and generators
- Meta programming
- 中级教程
- 高级
- 引用:
- 内置对象
- Array
- ArrayBuffer
- AsyncFunction
- Atomics
- Boolean
- DataView
- Date
- Error
- EvalError
- Float32Array
- Float64Array
- Function
- Generator
- GeneratorFunction
- Infinity
- Int16Array
- Int32Array
- Int8Array
- 内部错误
- Intl
- Intl.Collator
- Intl.DateTimeFormat
- Intl.NumberFormat
- Iterator
- JSON
- Map
- Math
- NaN
- Number
- Object
- ParallelArray
- Promise
- Proxy
- RangeError
- ReferenceError
- Reflect
- RegExp
- SIMD
- SIMD.Bool16x8 [我来译!]
- SIMD.Bool32x4 [我来译!]
- SIMD.Bool64x2 [我来译!]
- SIMD.Bool8x16 [我来译!]
- SIMD.Float32x4 [我来译!]
- SIMD.Float64x2 [我来译!]
- SIMD.Int16x8 [我来译!]
- SIMD.Int32x4 [我来译!]
- SIMD.Int8x16 [我来译!]
- SIMD.Uint16x8 [我来译!]
- SIMD.Uint32x4 [我来译!]
- SIMD.Uint8x16 [我来译!]
- Set
- SharedArrayBuffer
- StopIteration [我来译!]
- String
- Symbol
- SyntaxError
- TypeError
- TypedArray
- URIError [我来译!]
- Uint16Array [我来译!]
- Uint32Array
- Uint8Array
- Uint8ClampedArray
- WeakMap
- WeakSet
- WebAssembly
- decodeURI()
- decodeURIComponent()
- encodeURI()
- encodeURIComponent()
- escape()
- eval()
- isFinite()
- isNaN()
- null
- parseFloat
- parseInt
- undefined
- unescape()
- uneval()
- 表达式和运算符
- 语句和声明
- 函数
- Classes
- Errors
- Error: Permission denied to access property "x"
- InternalError: too much recursion
- RangeError: argument is not a valid code point
- RangeError: invalid array length
- RangeError: invalid date
- RangeError: precision is out of range
- RangeError: radix must be an integer
- RangeError: repeat count must be less than infinity
- RangeError: repeat count must be non-negative
- ReferenceError: "x" is not defined
- ReferenceError: assignment to undeclared variable "x"
- ReferenceError: deprecated caller or arguments usage
- ReferenceError: invalid assignment left-hand side
- ReferenceError: reference to undefined property "x"
- SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated [我来译!]
- SyntaxError: "use strict" not allowed in function with non-simple parameters
- SyntaxError: "x" is a reserved identifier [我来译!]
- SyntaxError: JSON.parse: bad parsing
- SyntaxError: Malformed formal parameter
- SyntaxError: Unexpected token
- SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead
- SyntaxError: a declaration in the head of a for-of loop can't have an initializer [我来译!]
- SyntaxError: applying the 'delete' operator to an unqualified name is deprecated [我来译!]
- SyntaxError: for-in loop head declarations may not have initializers [我来译!]
- SyntaxError: function statement requires a name [我来译!]
- SyntaxError: identifier starts immediately after numeric literal
- SyntaxError: illegal character [我来译!]
- SyntaxError: invalid regular expression flag "x" [我来译!]
- SyntaxError: missing ) after argument list
- SyntaxError: missing ) after condition [我来译!]
- SyntaxError: missing : after property id [我来译!]
- SyntaxError: missing ; before statement
- SyntaxError: missing = in const declaration [我来译!]
- SyntaxError: missing ] after element list
- SyntaxError: missing formal parameter [我来译!]
- SyntaxError: missing name after . operator [我来译!]
- SyntaxError: missing variable name [我来译!]
- SyntaxError: missing } after function body [我来译!]
- SyntaxError: missing } after property list
- SyntaxError: redeclaration of formal parameter "x"
- SyntaxError: return not in function
- SyntaxError: test for equality (==) mistyped as assignment (=)?
- SyntaxError: unterminated string literal
- TypeError: "x" has no properties
- TypeError: "x" is (not) "y"
- TypeError: "x" is not a constructor
- TypeError: "x" is not a function
- TypeError: "x" is not a non-null object [我来译!]
- TypeError: "x" is read-only
- TypeError: More arguments needed
- TypeError: can't access dead object [我来译!]
- TypeError: can't define property "x": "obj" is not extensible [我来译!]
- TypeError: can't redefine non-configurable property "x" [我来译!]
- TypeError: cyclic object value [我来译!]
- TypeError: invalid 'in' operand "x" [我来译!]
- TypeError: invalid Array.prototype.sort argument
- TypeError: invalid arguments [我来译!]
- TypeError: invalid assignment to const "x" [我来译!]
- TypeError: property "x" is non-configurable and can't be deleted
- TypeError: setting a property that has only a getter [我来译!]
- TypeError: variable "x" redeclares argument
- URIError: malformed URI sequence [我来译!]
- Warning: -file- is being assigned a //# sourceMappingURL, but already has one
- SyntaxError: "x" is not a legal ECMA-262 octal constant
- Warning: Date.prototype.toLocaleFormat is deprecated [我来译!]
- Warning: JavaScript 1.6's for-each-in loops are deprecated
- Warning: String.x is deprecated; use String.prototype.x instead [我来译!]
- Warning: expression closures are deprecated [我来译!]
- Warning: unreachable code after return statement
- 更多
- New in JavaScript
- 文档:
- 常用列表
- 贡献