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DataView.prototype.setFloat32()

The setFloat32() method of DataView instances takes a number and stores it as a 32-bit floating point number in the 4 bytes starting at the specified byte offset of this DataView. There is no alignment constraint; multi-byte values may be stored at any offset within bounds.

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Syntax

setFloat32(byteOffset, value)
setFloat32(byteOffset, value, littleEndian)

Parameters

byteOffset: The offset, in bytes, from the start of the view to store the data in.
value: The value to set. For how the value is encoded in bytes, see Value encoding and normalization.
littleEndian Optional: Indicates whether the data is stored in little- or big-endian format. If false or undefined, a big-endian value is written.

Return value

undefined.

Exceptions

RangeError: Thrown if the byteOffset is set such that it would store beyond the end of the view.

Examples

Using setFloat32()

const buffer = new ArrayBuffer(10);
const dataview = new DataView(buffer);
dataview.setFloat32(0, 3);
dataview.getFloat32(1); // 2

Specifications

Specification
ECMAScript Language Specification # sec-dataview.prototype.setfloat32

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`setFloat32`	9	12	15	12.1	5.1	18	15	12.1	5	1.0	4	1.0	0.10.0