Support null/Nan

[amigian74]

Hello,

ther should be the possibility to show null or Nan-values as ---. Now a null is cast to 0 - that is not correct in some situations.

[robertsLando]

You can use textRenderer for this

[amigian74]

It#s not that easy. There are no informations given to this function (like datatype, decimal points, etc.)

This is not working at all.

[robertsLando]

it has only one argument that is the number value to render, the output expected is a string or a number that you want to display

[amigian74]

That's the problem - all information in the config object (humanFriendlyDecimal, decimals) are left out. So I cant't format the value properly if it is not null/undefined.

[robertsLando]

You can get the config from the justgage instance object, what actually is missing are the human and format functions as them are not a justgage function, would you like to submit a PR where those functions are added in Justgage prototype so you can easily use them in the textrender function?

[amigian74]

I'm not sure when to do this - I'll try