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The ArrayBuffer.isView()
method returns true
if arg
is a view one of the ArrayBuffer
views, such as typed array objects or a DataView
; false
otherwise.
判断是否为ArrayBuffer的
试图类实例,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
- The argument to be checked.(待检参数)
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Typed Array Specification | Obsolete | Superseded by ECMAScript 6.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) |