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title: DataView.prototype.getInt32()
short-title: getInt32()
slug: Web/JavaScript/Reference/Global_Objects/DataView/getInt32
page-type: javascript-instance-method
browser-compat: javascript.builtins.DataView.getInt32
sidebar: jsref
---
The **`getInt32()`** method of {{jsxref("DataView")}} instances reads 4 bytes starting at the specified byte offset of this `DataView` and interprets them as a 32-bit signed integer. There is no alignment constraint; multi-byte values may be fetched from any offset within bounds.
{{InteractiveExample("JavaScript Demo: DataView.prototype.getInt32()")}}
```js interactive-example
// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setInt32(1, 2147483647); // Max signed 32-bit integer
console.log(view.getInt32(1));
// Expected output: 2147483647
```
## Syntax
```js-nolint
getInt32(byteOffset)
getInt32(byteOffset, littleEndian)
```
### Parameters
- `byteOffset`
- : The offset, in bytes, from the start of the view to read the data from.
- `littleEndian` {{optional_inline}}
- : Indicates whether the data is stored in [little- or big-endian](/en-US/docs/Glossary/Endianness) format. If `false` or `undefined`, a big-endian value is read.
### Return value
An integer from -2147483648 to 2147483647, inclusive.
### Exceptions
- {{jsxref("RangeError")}}
- : Thrown if the `byteOffset` is set such that it would read beyond the end of the view.
## Examples
### Using getInt32()
```js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getInt32(1)); // 16909060
```
## Specifications
{{Specifications}}
## Browser compatibility
{{Compat}}
## See also
- [JavaScript typed arrays](/en-US/docs/Web/JavaScript/Guide/Typed_arrays) guide
- {{jsxref("DataView")}}
- {{jsxref("ArrayBuffer")}}
- {{jsxref("Int32Array")}}
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