Surely "1337" is the same as 1337, right?

bleistift2@sopuli.xyz to Programmer Humor@programming.dev – 524 points –

Meme transcription:

Panel 1: Bilbo Baggins ponders, “After all… why should I care about the difference between int and String?

Panel 2: Bilbo Baggins is revealed to be an API developer. He continues, “JSON is always String, anyways…”

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That’s an artifact of JavaScript, not JSON. The JSON spec states that numbers are a sequence of digits with up to one decimal point. Implementations are not obligated to decode numbers as floating point. Go will happily decode into a 64-bit int, or into an arbitrary precision number.

What that means is that you cannot rely on numbers in JSON. Just use strings.

Unless you're dealing with some insanely flexible schema, you should be able to know what kind of number (int, double, and so on) a field should contain when deserializing a number field in JSON. Using a string does not provide any benefits here unless there's some big in your deserialzation process.

What's the point of your schema if the receiving end is JavaScript, for example? You can convert a string to BigNumber, but you'll get wrong data if you're sending a number.