> For the complete documentation index, see [llms.txt](https://docs.servoy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/bigint.md).

# BigInt

## Overview

The javascript BigInt implementation.\
BigInt is a built-in object that provides a way to represent whole numbers larger than 2^53-1. For more information see: [BigInt (MDN)](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt).

## Methods Summarized

| Type                                                     | Name                                                                | Summary                                                                                                                  |
| -------------------------------------------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| [BigInt](/reference/servoycore/dev-api/js-lib/bigint.md) | [asIntN(bits)](#asintn-bits)                                        | Returns a BigInt limited to a signed integer value of n bits.                                                            |
| [BigInt](/reference/servoycore/dev-api/js-lib/bigint.md) | [asUintN(bits)](#asuintn-bits)                                      | Returns a BigInt limited to an unsigned integer value of n bits.                                                         |
| [String](/reference/servoycore/dev-api/js-lib/string.md) | [toLocaleString()](#tolocalestring)                                 | Converts the BigInt value to a locale-sensitive string representation.                                                   |
| [String](/reference/servoycore/dev-api/js-lib/string.md) | [toLocaleString(locales)](#tolocalestring-locales)                  | Converts the BigInt value to a locale-sensitive string representation.                                                   |
| [String](/reference/servoycore/dev-api/js-lib/string.md) | [toLocaleString(locales, options)](#tolocalestring-locales-options) | Converts the BigInt value to a locale-sensitive string representation with the specified locales and formatting options. |
| [String](/reference/servoycore/dev-api/js-lib/string.md) | [toString()](#tostring)                                             | Converts the BigInt value to a string using the default base (10).                                                       |
| [String](/reference/servoycore/dev-api/js-lib/string.md) | [toString(radix)](#tostring-radix)                                  | Converts the BigInt value to a string in a specified base.                                                               |
| [BigInt](/reference/servoycore/dev-api/js-lib/bigint.md) | [valueOf()](#valueof)                                               | Returns the primitive value of the BigInt object.                                                                        |

## Methods Detailed

### asIntN(bits)

Returns a BigInt limited to a signed integer value of n bits.

**Parameters**

* [Number](/reference/servoycore/dev-api/js-lib/number.md) **bits** The number of bits to retain.

**Returns:** [BigInt](/reference/servoycore/dev-api/js-lib/bigint.md) A new BigInt limited to n signed bits.

**Sample**

```js
BigInt.asIntN(8, 257n);
```

### asUintN(bits)

Returns a BigInt limited to an unsigned integer value of n bits.

**Parameters**

* [Number](/reference/servoycore/dev-api/js-lib/number.md) **bits** The number of bits to retain.

**Returns:** [BigInt](/reference/servoycore/dev-api/js-lib/bigint.md) A new BigInt limited to n unsigned bits.

**Sample**

```js
BigInt.asUintN(8, 257n);
```

### toLocaleString()

Converts the BigInt value to a locale-sensitive string representation.

**Returns:** [String](/reference/servoycore/dev-api/js-lib/string.md) The locale-sensitive string representation of the BigInt using the default locale.

**Sample**

```js
BigInt(123456789123456789)toLocaleString();
```

### toLocaleString(locales)

Converts the BigInt value to a locale-sensitive string representation.

**Parameters**

* [String](/reference/servoycore/dev-api/js-lib/string.md) **locales** A string with a BCP 47 language tag, or an array of such strings. Corresponds to the locales parameter of the Intl.NumberFormat() constructor.

**Returns:** [String](/reference/servoycore/dev-api/js-lib/string.md) The locale-sensitive string representation of the BigInt.

**Sample**

```js
BigInt(123456789123456789).toLocaleString('de-DE');
```

### toLocaleString(locales, options)

Converts the BigInt value to a locale-sensitive string representation with the specified locales and formatting options.

**Parameters**

* [String](/reference/servoycore/dev-api/js-lib/string.md) **locales** A string with a BCP 47 language tag, or an array of such strings.
* [Object](/reference/servoycore/dev-api/js-lib/object.md) **options** An object with formatting options, such as \`useGrouping\` and \`minimumIntegerDigits\`.

**Returns:** [String](/reference/servoycore/dev-api/js-lib/string.md) The locale-sensitive string representation of the BigInt using the specified locale(s) and options.

**Sample**

```js
123456789012345678901234567890n.toLocaleString("de-DE", { style: 'currency', currency: 'EUR' });
```

### toString()

Converts the BigInt value to a string using the default base (10).

**Returns:** [String](/reference/servoycore/dev-api/js-lib/string.md) The string representation of the BigInt in base 10.

**Sample**

```js
/** @type {BigInt} */
let b = 1024n;
b.toString();
```

### toString(radix)

Converts the BigInt value to a string in a specified base.

**Parameters**

* [Number](/reference/servoycore/dev-api/js-lib/number.md) **radix** An integer between 2 and 36 that specifies the base of the returned string.

**Returns:** [String](/reference/servoycore/dev-api/js-lib/string.md) The string representation of the BigInt in the specified base.

**Sample**

```js
/** @type {BigInt} */
let b = 1024n;
b.toString(16);
```

### valueOf()

Returns the primitive value of the BigInt object.

**Returns:** [BigInt](/reference/servoycore/dev-api/js-lib/bigint.md) The primitive BigInt value.

**Sample**

```js
123n.valueOf();
```

***


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