DataView.prototype.getInt32()

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.

The getInt32() method of DataView instances reads 4 bytes starting at the specified byte offset of this DataView and interprets them as a 32-bit signed integer. There is no alignment constraint; multi-byte values may be fetched from any offset within bounds.

Try it

Syntax

js
getInt32(byteOffset)
getInt32(byteOffset, littleEndian)

Parameters

byteOffset

The offset, in bytes, from the start of the view to read the data from.

littleEndian Optional

Indicates whether the data is stored in little- or big-endian format. If false or undefined, a big-endian value is read.

Return value

An integer from -2147483648 to 2147483647, inclusive.

Exceptions

RangeError

Thrown if the byteOffset is set such that it would read beyond the end of the view.

Examples

Using getInt32()

js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getInt32(1)); // 16909060

Specifications

Specification
ECMAScript Language Specification
# sec-dataview.prototype.getint32

Browser compatibility

BCD tables only load in the browser

See also