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title: DataView.prototype.getInt8()
short-title: getInt8()
slug: Web/JavaScript/Reference/Global_Objects/DataView/getInt8
page-type: javascript-instance-method
browser-compat: javascript.builtins.DataView.getInt8
sidebar: jsref
---
The **`getInt8()`** method of {{jsxref("DataView")}} instances reads 1 byte at the specified byte offset of this `DataView` and interprets it as an 8-bit signed integer.
{{InteractiveExample("JavaScript Demo: DataView.prototype.getInt8()")}}
```js interactive-example
// 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
```js-nolint
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
- {{jsxref("RangeError")}}
- : Thrown if the `byteOffset` is set such that it would read beyond the end of the view.
## Examples
### Using getInt8()
```js
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
{{Specifications}}
## Browser compatibility
{{Compat}}
## See also
- [JavaScript typed arrays](/en-US/docs/Web/JavaScript/Guide/Typed_arrays) guide
- {{jsxref("DataView")}}
- {{jsxref("ArrayBuffer")}}
- {{jsxref("Int8Array")}}
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