42 lines
844 B
JavaScript
42 lines
844 B
JavaScript
'use strict';
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var hasBigInts = require('has-bigints')();
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if (hasBigInts) {
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var bigIntValueOf = BigInt.prototype.valueOf;
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/** @type {(value: object) => value is BigInt} */
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var tryBigInt = function tryBigIntObject(value) {
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try {
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bigIntValueOf.call(value);
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return true;
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} catch (e) {
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}
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return false;
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};
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/** @type {import('.')} */
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module.exports = function isBigInt(value) {
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if (
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value === null
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|| typeof value === 'undefined'
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|| typeof value === 'boolean'
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|| typeof value === 'string'
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|| typeof value === 'number'
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|| typeof value === 'symbol'
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|| typeof value === 'function'
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) {
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return false;
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}
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if (typeof value === 'bigint') {
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return true;
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}
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return tryBigInt(value);
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};
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} else {
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/** @type {import('.')} */
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module.exports = function isBigInt(value) {
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return false && value;
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};
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}
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