To add to your list of common grievances about JS, there is no integer nor bigint datatype, only doubles, so floating-point rounding errors are common and numbe

To add to your list of common grievances about JS, there is no integer nor bigint datatype, only doubles, so floating-point rounding errors are common and numbers have an upper limit (2^53). Also, the way variable scoping works in the language, is completely insane.