Question

I need a js function that show the original count of decimals in a number. For example:

value          display
2.31             2
1.0              1
2.3500           4

The problem is that i dont know how get the count of decimals.
I have that code:
value=2.3500;
return CountofDecimals(value); // must be display 4:

Anything help??? Thanks 😛

Answer 1

Caveat: I hate this answer, I don’t really advocate it

Don’t store it as a number, store it as a string. This can result in “stringly typed” code quickly so it is inadvisable. It is a workaround since JavaScript uses a float as the number type.

Alternatively store it as an Object and parse out the format via a function call:

{ value = "1.2345", decimal = 4} 

and use that to create the correct number format. If I had the requirement this is probably the hack I’d use. Or, I would have my server return the formatted string as you can pull that off easily server side.