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The ArrayBuffer.isView() 方法当arg是一个ArrayBuffer的视图就返回true, 例如类型化数组对象(typed array objects )或者 一个数据视图(a DataView); 否则返回false.

判断是否为ArrayBuffer的视图类实例,包括 typed array objects(类型化数组对象) 和 a DataView

Syntax(语法)

ArrayBuffer.isView(arg)

Parameters(参数)

arg
    被检测的语句。

Examples(示例)

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

var buffer = new ArrayBuffer(2);
var dv = new DataView(buffer);
ArrayBuffer.isView(dv); // true

Specifications(说明文档)

Specification(说明书) Status(状态) Comment(备注)
Typed Array Specification Obsolete Superseded by ECMAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262)
ArrayBuffer.isView
Standard Initial definition in an ECMA standard.

Browser compatibility(浏览器兼容性)

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) 29 (29) 11 (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) 29.0 (29) 11 (Yes) (Yes)

See also(另见参考文档)

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