1:  const num = 42;

   2:  const str = String(num);        // Number to string

   3:  const bool = true;

   4:  const nul = null;

   5:  const und = undefined;

   6:  const special = NaN;

   7:  const big = 1234567890123456789n;

   8:  

   9:  const boolFromNum = Boolean(num);   // Number to boolean (0 is falsy, others truthy)

  10:  const boolFromStr = Boolean(str);   // String to boolean (empty string "" is falsy, others truthy)

  11:  const boolFromBig = Boolean(big);   // BigInt to boolean (0n is falsy, others truthy).

  12:  const boolFromNul = Boolean(nul);   // Null to boolean (falsy)

  13:  const boolFromUnd = Boolean(und); // Undefined to boolean (falsy)

  14:  const boolFromNan = Boolean(special); // NaN to boolean (falsy)

  15:  

  16:  console.log(boolFromNum);

  17:  console.log(boolFromStr);

  18:  console.log(boolFromBig);

  19:  console.log(boolFromNul);

  20:  console.log(boolFromUnd);

  21:  console.log(boolFromNan);