I would like to have a function which casts a variable based on its "reference" type variable.
I guess the function would take two parameters cast(x, ref), where x is the variable to cast accordingly to the data type of ref.
So for example:
let myVar = cast(3, "helloworld");
console.log(myVar); // "3"
let myNewVar = cast(myVar, 32423n);
console.log(myNewVar); // 3n
Right now, I've only managed to transform numbers to bigints if the ref is a bigint
const cast = (n, ref) => typeof ref === "number" ? n : BigInt(n)
It would be nice to cast a variable to the data type of another variable.
// Cast will attempt to force cast something (n) into the type of
// something else (ref)
const cast = (n, ref) => {
switch(typeof(ref)) // All major types and how to convert them
{
case "boolean": return Boolean(n);
case "number": return Number(n);
case "bigint": return BigInt(n);
case "string": return String(n);
case "symbol": return Symbol(n);
case "undefined": return undefined;
default: return n; // If none of the above is the type, we return n
}
}
// Example: 2 is an int, and the reference is a string, so we cast an int
// to a string, this could be done with various types more complexly
let a = 2
let b = "hello"
a = cast(a, b)
console.log(a, typeof(a)) // 2, string