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dfkaye/is-number-or-bigint.js

Created August 18, 2024 08:14
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is-number with bigint support
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is-number-or-bigint.js
// 22 June 2024
// is-number with bigint support
function isNumber(n) {
var m = typeof n == 'bigint'
? 0n
: 0;
return n - m === Object(n).valueOf();
}
isNumber([1])
//isNumber(new Number(9))
//isNumber()
//isNumber({valueOf: () => 213})
//isNumber(99n)
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