39 строки
737 B
JavaScript
39 строки
737 B
JavaScript
'use strict';
|
|
|
|
var hasBigInts = require('has-bigints')();
|
|
|
|
if (hasBigInts) {
|
|
var bigIntValueOf = BigInt.prototype.valueOf;
|
|
var tryBigInt = function tryBigIntObject(value) {
|
|
try {
|
|
bigIntValueOf.call(value);
|
|
return true;
|
|
} catch (e) {
|
|
}
|
|
return false;
|
|
};
|
|
|
|
module.exports = function isBigInt(value) {
|
|
if (
|
|
value === null
|
|
|| typeof value === 'undefined'
|
|
|| typeof value === 'boolean'
|
|
|| typeof value === 'string'
|
|
|| typeof value === 'number'
|
|
|| typeof value === 'symbol'
|
|
|| typeof value === 'function'
|
|
) {
|
|
return false;
|
|
}
|
|
if (typeof value === 'bigint') {
|
|
return true;
|
|
}
|
|
|
|
return tryBigInt(value);
|
|
};
|
|
} else {
|
|
module.exports = function isBigInt(value) {
|
|
return false && value;
|
|
};
|
|
}
|