Function bigintize

bigintize(v, d?): bigint
string や number を bigint に変換 Convert string, number, etc... to bigint
Parameters
- v: unknown
  変換元の値
  value to convert
- Optional d: bigint
  変換に失敗した場合に返す値
  value to return if conversion fails
Returns bigint
Example
```
bigintize('123') // BigInt(123)
bigintize(123) // BigInt(123)
bigintize('$1,000') // BigInt(1000)
bigintize(NaN) // throw error
bigintize('invalid value') // throw error
bigintize('invalid value', BitInt(1)) // BitInt(1)
```
- Defined in convert/bigintize.ts:20