非常教程

JavaScript参考手册

错误 | Errors

Errors: Malformed URI

信息

URIError: malformed URI sequence (Firefox)
URIError: URI malformed (Chrome)

错误类型

URIError

什么地方出了错?

URI编码或解码不成功。给任一个参数decodeURIencodeURIencodeURIComponent,或decodeURIComponent功能是无效的,因此该功能无法编码或解码正常。

例子

编码

编码通过代表字符的UTF-8编码的一个,两个,三个或四个转义序列来替换某些字符的每个实例。一个URIError如果存在以编码替代这不是一个高-低对的一部分,例如,试图将被抛出:

encodeURI('\uD800');
// "URIError: malformed URI sequence"

encodeURI('\uDFFF');
// "URIError: malformed URI sequence"

高低对可以。例如:

encodeURI('\uD800\uDFFF');
// "%F0%90%8F%BF"

解码

解码会将编码的URI组件中的每个转义序列替换为它所表示的字符。如果没有这样的字符,就会抛出一个错误:

decodeURIComponent('%E0%A4%A');
// "URIError: malformed URI sequence"

通过适当的输入,通常应该看起来像这样:

decodeURIComponent('JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B');
// "JavaScript_шеллы"

错误 | Errors相关

1.Error
2.error.message
3.error.name
4.Error.prototype
5.error.toString
6.Errors
7.Errors: Already has pragma
8.Errors: Array sort argument
9.Errors: Bad octal
10.Errors: Bad radix
11.Errors: Bad regexp flag
12.Errors: Bad return or yield
13.Errors: Called on incompatible type
14.Errors: Cant access lexical declaration before init
15.Errors: Cant define property object not extensible
16.Errors: Cant delete
17.Errors: Cant redefine property
18.Errors: Cyclic object value
19.Errors: Dead object
20.Errors: Delete in strict mode
21.Errors: Deprecated caller or arguments usage
22.Errors: Deprecated expression closures
23.Errors: Deprecated octal
24.Errors: Deprecated source map pragma
25.Errors: Deprecated String generics
26.Errors: Deprecated toLocaleFormat
27.Errors: Equal as assign
28.Errors: For-each-in loops are deprecated
29.Errors: Getter only
30.Errors: Identifier after number
31.Errors: Illegal character
32.Errors: in operator no object
33.Errors: Invalid array length
34.Errors: Invalid assignment left-hand side
35.Errors: Invalid const assignment
36.Errors: Invalid date
37.Errors: Invalid for-in initializer
38.Errors: Invalid for-of initializer
39.Errors: JSON bad parse
40.Errors: Malformed formal parameter
41.Errors: Missing bracket after list
42.Errors: Missing colon after property id
43.Errors: Missing curly after function body
44.Errors: Missing curly after property list
45.Errors: Missing formal parameter
46.Errors: Missing initializer in const
47.Errors: Missing name after dot operator
48.Errors: Missing parenthesis after argument list
49.Errors: Missing parenthesis after condition
50.Errors: Missing semicolon before statement
51.Errors: More arguments needed
52.Errors: Negative repetition count
53.Errors: No non-null object
54.Errors: No properties
55.Errors: No variable name
56.Errors: Non configurable array element
57.Errors: Not a codepoint
58.Errors: Not a constructor
59.Errors: Not a function
60.Errors: Not defined
61.Errors: Precision range
62.Errors: Property access denied
63.Errors: Read-only
64.Errors: Redeclared parameter
65.Errors: Reserved identifier
66.Errors: Resulting string too large
67.Errors: Stmt after return
68.Errors: Strict Non Simple Params
69.Errors: Too much recursion
70.Errors: Typed array invalid arguments
71.Errors: Undeclared var
72.Errors: Undefined prop
73.Errors: Unexpected token
74.Errors: Unexpected type
75.Errors: Unnamed function statement
76.Errors: Unterminated string literal
77.Errors: Var hides argument
78.EvalError
79.EvalError.prototype
80.RangeError
81.RangeError.prototype
82.ReferenceError
83.ReferenceError.prototype
84.SyntaxError
85.SyntaxError.prototype
86.TypeError
87.TypeError.prototype
88.URIError
89.URIError.prototype
JavaScript

JavaScript 是一种高级编程语言,通过解释执行,是一门动态类型,面向对象(基于原型)的解释型语言。它已经由ECMA(欧洲电脑制造商协会)通过 ECMAScript 实现语言的标准化。它被世界上的绝大多数网站所使用,也被世界主流浏览器( Chrome、IE、FireFox、Safari、Opera )支持。JavaScript 是一门基于原型、函数先行的语言,是一门多范式的语言,它支持面向对象编程,命令式编程,以及函数式编程。它提供语法来操控文本、数组、日期以及正则表达式等,不支持 I/O,比如网络