const number // Some Decimal Number
const decimal = number - Math.floor(number)
//implementation
const number = 3.78;
const decimal = 3.78 - (Math.floor(3.78)) // Math.floor(3.78) returns 3
// decimal is 0.78
const removedDecimal = Math.round(decimal);
// returns 5
number % 1
const removedDecimal = Math.trunc(decimal);
// returns 5