November 8, 2023
Understanding the task
A number reversal flips the order of its digits. For example, reversing
Convert the number to a string
Start by converting the number to a string using the
toString() method. This step is necessary because the reversal methods apply to strings and arrays, not numbers.
Split the string into an array
Once the number is a string, use the
split('') method to create an array where each element is a single digit.
Reverse the array
reverse() method to invert the order of the elements in the array.
Join the array back into a string
After reversing, use
join('') to concatenate the elements back into a single string.
Convert the string back to a number
Lastly, convert the string back into a number with the
parseInt() function. If you need to handle decimals, use
Handling negative numbers
For negative numbers, you'll need to remove the minus sign before reversing and add it back after.
Dealing with decimals
If the number has decimals, the process is similar, but you'll need to handle the decimal point.
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