DataView.prototype.getFloat32() - JavaScript | MDN
Try it
// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setFloat32(1, Math.PI);
console.log(view.getFloat32(1));
// Expected output: 3.1415927410125732
Syntax
js
getFloat32(byteOffset)
getFloat32(byteOffset, littleEndian)
Parameters
byteOffset-
The offset, in bytes, from the start of the view to read the data from.
littleEndianOptional-
Indicates whether the data is stored in little- or big-endian format. If
falseorundefined, a big-endian value is read.
Return value
A floating point number from -3.4e38 to 3.4e38.
Exceptions
RangeError-
Thrown if the
byteOffsetis set such that it would read beyond the end of the view.
Examples
Using getFloat32()
js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getFloat32(1)); // 2.387939260590663e-38
Specifications
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-dataview.prototype.getfloat32 |