This particular function is designed to split a string into three separate parts.
transform<T extends String, N>(arr: T): T {
let length = arr.length;
const split = (fn: (i: N) => T) => (p: (q: N) => N) => (arg: N) => fn(p(arg));
const param = (arg: number): number => {
if (length % 3 === 1) {
arg = 1;
} else if (length % 3 === 2) {
arg = 2;
}
return arg
}
const func = (index: number): string => {
let divided = [];
let first = arr.slice(0, index);
let lastQuery = arr.slice(index);
for (let i = 0; i < lastQuery.length; i += 3) {
divided.push(lastQuery.slice(i, 3 + i))
}
let res: string[] = [first, ...divided];
return res.join(' ');
}
return split(func)(param)(0);
}
TS2345: Argument of type '(index: number) => string' is not assignable to parameter of type '(i: N) => T'.
Types of parameters 'index' and 'i' are incompatible.
Type 'N' is not assignable to type 'number'.
TS2345: Argument of type '(arg: number) => number' is not assignable to parameter of type '(q: N) => N'.
Types of parameters 'arg' and 'q' are incompatible.
Type 'N' is not assignable to type 'number'.
TS2345: Argument of type 'number' is not assignable to parameter of type 'N'.
'N' could be instantiated with an arbitrary type which could be unrelated to 'number'.
T represents a string data type, while N stands for a numerical value.
I'm having difficulty understanding the reasons behind these errors. Can anyone provide any guidance?