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  1. Web technology for developers
  2. JavaScript
  3. JavaScript reference
  4. Standard built-in objects
  5. BigInt
  6. BigInt() constructor
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Table of contents

  • Syntax
  • Examples
  • Specifications
  • Browser compatibility
  • See also

BigInt() constructor

The BigInt() constructor returns a value of type bigint.

Syntax

BigInt(value);

Parameters

value
The numeric value of the object being created. May be a string or an integer.

Note: BigInt() is not used with the new operator.

Examples

Creating a new BigInt

BigInt(123);
// 123n

Specifications

Specification
ECMAScript Language Specification (ECMAScript)
# sec-bigint-constructor

Browser compatibility

BCD tables only load in the browser

See also

  • BigInt class

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Last modified: May 5, 2021, by MDN contributors

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Related Topics

  1. Standard built-in objects
  2. BigInt
  3. Methods
    1. BigInt.asIntN()
    2. BigInt.asUintN()
    3. BigInt.prototype.toLocaleString()
    4. BigInt.prototype.toString()
    5. BigInt.prototype.valueOf()
  4. Inheritance:
  5. Function
  6. Properties
    1. Function.arguments
    2. Function.caller
    3. Function.displayName
    4. Function.length
    5. Function.name
  7. Methods
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toSource()
    5. Function.prototype.toString()
  8. Object
  9. Properties
    1. Object.prototype.constructor
    2. Object.prototype.__proto__
  10. Methods
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.setPrototypeOf()
    9. Object.prototype.toLocaleString()
    10. Object.prototype.toSource()
    11. Object.prototype.toString()
    12. Object.prototype.valueOf()
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