% tsc
decoder.ts:432:55 - error TS2339: Property 'error' does not exist on type 'Result<A, Partial<DecoderError>>'.
Property 'error' does not exist on type 'Ok<A>'.
432 return Result.err(prependAt(`[${i}]`, nth.error));
~~~~~
Found 1 error.
In this code block:
static tuple<A>(decoders: Decoder<A>[]) {
return new Decoder((json: unknown) => {
if (isJsonArray(json)) {
if (json.length !== decoders.length) {
return Result.err({
message: `expected a tuple of length ${decoders.length}, got one of length ${
json.length
}`
});
}
const result = [];
for (let i: number = 0; i < decoders.length; i++) {
const nth = decoders[i].decode(json[i]);
if (nth.ok) {
result[i] = nth.result;
} else {
return Result.err(prependAt(`[${i}]`, nth.error));
}
}
return Result.ok(result);
} else {
return Result.err({message: expectedGot(`a tuple of length ${decoders.length}`, json)});
}
});
}
In this code block: