javascript instance method
DataView.prototype.getInt8()
The getInt8() method of DataView instances reads 1 byte at the specified byte offset of this DataView and interprets it as an 8-bit signed integer.
Interactive exampleOpen the canonical MDN source to run this embedded demo.
// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setInt8(1, 127); // Max signed 8-bit integer
console.log(view.getInt8(1));
// Expected output: 127
Syntax
getInt8(byteOffset)
Parameters
byteOffset- : The offset, in bytes, from the start of the view to read the data from.
Return value
An integer from -128 to 127, inclusive.
Exceptions
RangeError- : Thrown if the
byteOffsetis set such that it would read beyond the end of the view.
- : Thrown if the
Examples
Using getInt8()
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getInt8(1)); // 1
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.