在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

ArrayBuffer.isView() method determines whether the passed value is one of the ArrayBuffer views, such as typed array objects 或 DataView .

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

句法

ArrayBuffer.isView(value)
					

参数

value

The value to be checked.

返回值

true if the given argument is one of the ArrayBuffer views; otherwise, false .

范例

Using isView

ArrayBuffer.isView();                    // false
ArrayBuffer.isView([]);                  // false
ArrayBuffer.isView({});                  // false
ArrayBuffer.isView(null);                // false
ArrayBuffer.isView(undefined);           // false
ArrayBuffer.isView(new ArrayBuffer(10)); // false
ArrayBuffer.isView(new Uint8Array());    // true
ArrayBuffer.isView(new Float32Array());  // true
ArrayBuffer.isView(new Int8Array(10).subarray(0, 3)); // true
const buffer = new ArrayBuffer(2);
const dv = new DataView(buffer);
ArrayBuffer.isView(dv); // true
					

规范

规范
ECMAScript (ECMA-262) The definition of 'ArrayBuffer.isView' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
isView	Chrome 32	Edge 12	Firefox 29	IE 11	Opera 19	Safari 7	WebView Android ≤37	Chrome Android 32	Firefox Android 29	Opera Android 19	Safari iOS 7	Samsung Internet Android 2.0	nodejs 4.0.0

图例

完整支持

完整支持

另请参阅

• JavaScript 类型数组

元数据

• 最后修改： May 6, 2020

相关话题

1. 标准内置对象
2. ArrayBuffer
3. 特性
   1. ArrayBuffer.prototype.byteLength
   2. get ArrayBuffer[@@species]
4. 方法
   1. ArrayBuffer.isView()
   2. ArrayBuffer.prototype.slice()
5. 继承：
6. Function
7. 特性
   1. Function.arguments
   2. Function.caller
   3. Function.displayName
   4. Function.length
   5. Function.name
8. 方法
   1. Function.prototype.apply()
   2. Function.prototype.bind()
   3. Function.prototype.call()
   4. Function.prototype.toSource()
   5. Function.prototype.toString()
9. Object
10. 特性
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
11. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.valueOf()
    12. Object.setPrototypeOf()