I need to get the place value of a random number submitted by a user. This number can by anything from 0-1000000000000000 (zero to one trillion).
I think this can be achieved by using the JavaScript modulus
%
operator. The problem, I don’t really know how to use it, nor do I understand it.Here is the Fiddle.
(All I know is 10%3
returns 1
because 3*3
= 9
and 10-9
= 1
)
I figured out the ones, tens, hundreds, and thousands:
var ones = Math.floor(num % 10), tens = Math.floor(num / 10 % 10), hundreds = Math.floor(num / 100 % 10), thousands = Math.floor(num % 10000 / 1000);
I just need:
- Ten thousands
- Hundred thousands
- Millions
- Ten millions
- Hundred millions
- Billions
- Ten billions
- Hundred billions
- Trillions
— I don’t even know if this is possible for the rest, but if you have any hints or find at least one, let me know! Thank you.
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Answer
var ones = Math.floor(num % 10), tens = Math.floor(num/10 % 10), hundreds = Math.floor(num/100 % 10), thousands = Math.floor(num/1000 % 10), tenThousands = Math.floor(num / 10000 % 10), hundredThousands = Math.floor(num / 100000 % 10), millions = Math.floor(num / 1000000 % 10), tenMillions = Math.floor(num / 10000000 % 10), hundredMillions = Math.floor(num / 100000000 % 10);
Managed to get to 100 million.