ArrayBuffer.prototype.byteLength - JavaScript 编辑

byteLength访问器属性表示一个ArrayBuffer 对象的字节长度。

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语法

arraybuffer.byteLength

描述

byteLength属性是一个访问器属性，它的set访问器函数是undefined，这意味着你只能读这个属性。 该值在数组创建时确定，并且不可变更。如果这个ArrayBuffer 被移除，则此属性返回0。

 

示例

var buffer = new ArrayBuffer(8);
buffer.byteLength; // 8

规范

规范	状态	备注
Typed Array Specification	Obsolete	Superseded by ECMAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262) ArrayBuffer.prototype.byteLength	Standard	Initial definition in an ECMA standard.

浏览器兼容性

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相关链接

• ArrayBuffer