DataView.prototype.setFloat16()
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The setFloat16()
method of DataView
instances takes a number and stores it as a 16-bit floating point number in the 2 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.
Try it
// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setFloat16(1, Math.PI);
console.log(view.getFloat16(1));
// Expected output: 3.140625
Syntax
setFloat16(byteOffset, value)
setFloat16(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
orundefined
, a big-endian value is written.
Return value
Exceptions
RangeError
-
Thrown if the
byteOffset
is set such that it would store beyond the end of the view.
Examples
Using setFloat16()
const buffer = new ArrayBuffer(10);
const dataview = new DataView(buffer);
dataview.setFloat16(0, 3);
dataview.getFloat16(1); // 0
Specifications
Specification |
---|
Float16Array # sec-dataview.prototype.setfloat16 |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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setFloat16 |
Legend
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- Full support
- Full support
- No support
- No support