How to solve this ?

Question

// Write a function that takes a number as argument
// If the number is a whole number (has no decimal place), return true
// Otherwise, return false

console.log(myFunction(4)) //true
console.log(myFunction(12.0)) // false

Like So

Answer 1

ATTEMPT 01:
const myFunction=hashNum=>
hashNum%1!=0?true:false

ATTEMPT 02:
const myFunction=hashNum=> Number.isInteger(hashNum)?true:false

Answer 2

ATTEMPT 03: (Worked)
console.log((n=>n-Math.floor(n)!==0?true:false)())

Answer 3

Aysha please share if you have good logic to solve this , thank you