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JavaScript参考手册

错误 | Errors

Errors: Typed array invalid arguments

信息

TypeError: invalid arguments (Firefox)

错误类型

TypeError

哪里出错了?

类型数组构造函数需要

  • 长度,
  • 另一种类型的数组,
  • 类似数组的对象,
  • 可迭代的对象或
  • 一个ArrayBuffer对象

创建一个新的类型数组。其他的构造函数参数不会创建一个有效的类型数组。

示例

类型数组,例如a Uint8Array,不能用字符串构造。实际上,字符串根本不可能在类型数组中。

var ta = new Uint8Array("nope");
// TypeError: invalid arguments

不同的方式来创建一个有效的Uint8Array

// From a length
var uint8 = new Uint8Array(2);
uint8[0] = 42;
console.log(uint8[0]); // 42
console.log(uint8.length); // 2
console.log(uint8.BYTES_PER_ELEMENT); // 1

// From an array
var arr = new Uint8Array([21,31]);
console.log(arr[1]); // 31

// From another TypedArray
var x = new Uint8Array([21, 31]);
var y = new Uint8Array(x);
console.log(y[0]); // 21

// From an ArrayBuffer
var buffer = new ArrayBuffer(8);
var z = new Uint8Array(buffer, 1, 4);

// From an iterable 
var iterable = function*(){ yield* [1,2,3]; }(); 
var uint8 = new Uint8Array(iterable); 
// Uint8Array[1, 2, 3]

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: Malformed URI
42.Errors: Missing bracket after list
43.Errors: Missing colon after property id
44.Errors: Missing curly after function body
45.Errors: Missing curly after property list
46.Errors: Missing formal parameter
47.Errors: Missing initializer in const
48.Errors: Missing name after dot operator
49.Errors: Missing parenthesis after argument list
50.Errors: Missing parenthesis after condition
51.Errors: Missing semicolon before statement
52.Errors: More arguments needed
53.Errors: Negative repetition count
54.Errors: No non-null object
55.Errors: No properties
56.Errors: No variable name
57.Errors: Non configurable array element
58.Errors: Not a codepoint
59.Errors: Not a constructor
60.Errors: Not a function
61.Errors: Not defined
62.Errors: Precision range
63.Errors: Property access denied
64.Errors: Read-only
65.Errors: Redeclared parameter
66.Errors: Reserved identifier
67.Errors: Resulting string too large
68.Errors: Stmt after return
69.Errors: Strict Non Simple Params
70.Errors: Too much recursion
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