Number of digits in a JavaScript number
Your entry, the string:
No number provided
Number of characters (digits):
Get length using Number.toString().length
After the provided string is converted to number we can use Number.toString().length to get its number of digits. This is what we get in that case:
Number:
Number of digits:
Calculate length using the division and while loop
After the provided string is converted to number, we can do the division by 10 in a while loop and count the number of divisions until the number value gets less than one:
Number:
Number of digits:
Calculate length using the exponent
After the provided string is converted to number, we can also check if the Number.toString() has the exponent present and then use the exponent value to calculate the number of digits:
Number:
Number of digits: