From 522984283b56b68582d606c76e4ca98c0baf9451 Mon Sep 17 00:00:00 2001 From: MDN Date: Tue, 15 Jun 2021 00:35:40 +0000 Subject: [CRON] sync translated content --- .../typed_array_invalid_arguments/index.html | 76 ---------------------- 1 file changed, 76 deletions(-) delete mode 100644 files/zh-cn/web/javascript/reference/errors/typed_array_invalid_arguments/index.html (limited to 'files/zh-cn/web/javascript/reference') diff --git a/files/zh-cn/web/javascript/reference/errors/typed_array_invalid_arguments/index.html b/files/zh-cn/web/javascript/reference/errors/typed_array_invalid_arguments/index.html deleted file mode 100644 index 314a4a425c..0000000000 --- a/files/zh-cn/web/javascript/reference/errors/typed_array_invalid_arguments/index.html +++ /dev/null @@ -1,76 +0,0 @@ ---- -title: 'TypeError: invalid arguments' -slug: Web/JavaScript/Reference/Errors/Typed_array_invalid_arguments -tags: - - JavaScript - - 类型错误 - - 错误提示 -translation_of: Web/JavaScript/Reference/Errors/Typed_array_invalid_arguments ---- -
{{jsSidebar("Errors")}}
- -

错误提示

- -
TypeError: invalid arguments (Firefox)
- -

错误类型

- -

{{jsxref("TypeError")}}

- -

哪里出错了?

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类型化数组(Typed array) 的构造器可以通过接收以下类型的参数中的一种

- - - -

来创建一个新的类型化数组。其他类型的构造器参数都无法创建合法的类型化数组。

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示例

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类型化数组——例如  {{jsxref("Uint8Array")}} ——无法通过字符串创建。实际上,字符串根本不能出现在类型化数组中。

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

创建一个合法的 {{jsxref("Uint8Array")}} 对象的不同方式:

- -
// 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]
-
- -

相关内容

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