0 alone is a number. 0 after 1 is the number 10. 021 is the number 21. This is how it is in all programming languages. A number is a number is a number. If you want to have a 0 in front, then your talking a string (or a forced format number which is basically the same thing).
>Now it goes to the definition of number, 0, as 1 or 2, is A NUMBER.
>021 IS DIFFERNT FROM 21.
>
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