getInt16()方法DataView起始位置以byte为计数的指定偏移量(byteOffset)处获取一个16-bit数(短整型).

语法

dataview.getInt16(byteOffset [, littleEndian])

参数

byteOffset
偏移量, 单位为字节, 从头开始计算.
littleEndian
可选 Indicates whether the 16-bit int is stored in little- or big-endian format. If false or undefined, a big-endian value is read.

返回

一个短整型16位数.

抛出错误

RangeError
如果byteOffset超出了视图能储存的值,就会抛出错误.

描述

 没有对齐约束; 多字节值可以从任何偏移量获取.

例子

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.getInt16(1); // 0

规范

Specification Status Comment
Typed Array Specification Obsolete Superseded by ECMAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262)
DataView.prototype.getInt16
Standard Initial definition in an ECMA standard.
ECMAScript Latest Draft (ECMA-262)
DataView.prototype.getInt16
Draft  

浏览器支持

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung InternetNode.js
Basic supportChrome Full support 9Edge Full support 12Firefox Full support 15IE Full support 10Opera Full support 12.1Safari Full support 5.1WebView Android Full support 4Chrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 15Opera Android Full support 12Safari iOS Full support 4.2Samsung Internet Android Full support Yesnodejs Full support Yes

Legend

Full support  
Full support

另见

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