DataView.prototype.setInt32()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

setInt32() 从 DataView 起始位置以 byte 为计数的指定偏移量 (byteOffset) 处储存一个 32-bit 数 (长整型)。

尝试一下

语法

dataview.setInt32(byteOffset, value [, littleEndian])

参数

byteOffset

偏移量，从头开始计算，单位为字节。

value

设置的数值。

littleEndian

可选 Indicates whether the 32-bit int is stored in little- or big-endian format. If false or undefined, a big-endian value is written.

返回

undefined.

抛出错误

RangeError

如果 byteOffset 超出了视图能储存的值，就会抛出错误。

示例

js
var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.setInt32(1, 3);
dataview.getInt32(1); // 3

规范

Specification
ECMAScript Language Specification
# sec-dataview.prototype.setint32

浏览器兼容性

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