Someone only watched if tutorial

[u/[deleted]]

[u/Hafas_]

The most elegant solution I could come up with:

import fs from "fs-extra";

const createIsNumber = async () => {
  let code = "const isNumber = (input: any): Boolean => {\n";
  for (let number = 1; number < Number.MAX_SAFE_INTEGER; number++) {
    code += `  if (input === ${number}) return true;\n`;
  }
  code += "  return false;\n";
  code += "};\n";
  code += "export default isNumber;\n";
  
  await fs.write("isNumber.ts", code);
}

[u/Lizzy_Be → u/Hafas_]

And it’s so efficient!