Function at

It's basically the same as Decode.field, but makes it easier to define deep property paths. Instead of Decode.field('outer', Decode.field('inner', Decode.string)) you can use Decode.at(['outer', 'inner'], Decode.string)

Example

When you want to access the name field in an object like this

{
    "data": {
        "outer": {
            "inner": {
                "name": "Kobe Bryant",
            },
        },
    },
}
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you would have to chain quite a few field decoders, which is annoying.

const decoder = Decode.field(
    'data',
    Decode.field(
        'outer',
        Decode.field(
            'inner',
            Decode.field(
                'name',
                Decode.string,
            ),
        ),
    ),
);

decode(decoder, raw) === 'Kobe Bryant'
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Decode.at allows us to be more concise.

const short = Decode.at(['data', 'outer', 'inner', 'name'], Decode.string);
decode(short, raw) === 'Kobe Bryant'
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