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Typed Array Specification | Obsolete | Superseded by ECMAScript 6.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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