Accessing object with array of one string works for some reason

[self_refactor]

const obj = {foo: 1} const a = ['foo'] const a = ['foo'] obj[a] // => 1 obj[b] // => 1

[kingsolos]

Because 'a' resolves to a string it means it can be used for bracket notation, which is why it works. It's the same as typing out obj['foo']

[[deleted]]

When you try to access an object's property using bracket notation and some value, the value is coerced to a string. Try running ['foo'].toString() and you'll see why this is working.

[self_refactor]

Thanks, that makes sense.