index.md

title	slug	page-type	browser-compat
DataView.prototype.getUint32()	Web/JavaScript/Reference/Global_Objects/DataView/getUint32	javascript-instance-method	javascript.builtins.DataView.getUint32

{{JSRef}}

The getUint32() method of {{jsxref("DataView")}} instances reads 4 bytes starting at the specified byte offset of this DataView and interprets them as a 32-bit unsigned integer. There is no alignment constraint; multi-byte values may be fetched from any offset within bounds.

{{EmbedInteractiveExample("pages/js/dataview-getuint32.html")}}

Syntax

getUint32(byteOffset)
getUint32(byteOffset, littleEndian)

Parameters

• byteOffset
  • : The offset, in bytes, from the start of the view to read the data from.
• littleEndian {{optional_inline}}
  • : 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 0 to 4294967295, inclusive.

Exceptions

• {{jsxref("RangeError")}}
  • : Thrown if the byteOffset is set such that it would read beyond the end of the view.

Examples

Using getUint32()

const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getUint32(1)); // 16909060

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• JavaScript typed arrays guide
• {{jsxref("DataView")}}
• {{jsxref("ArrayBuffer")}}
• {{jsxref("Uint32Array")}}