Pull request to add dynamic variable to show or hide "-" operator

[snarayankar]

Added "showNegativeOperator" as a variable which will prepend the "-" sign only if this operator is set to true if not it will return with the prefix & suffix without the operator.

I am using this currency mask in my project, the only limitation is to hide the "-" operator since i am using prefix & suffix which are being used to represent the negative numbers

[nbfontana]

Hi @snarayankar, I was doing some testing in your changes and I noticed that after setting allowNegative to true and showNegativeOperator to false it ended up not updating the model to a negative value anymore... I think that your proposal is to keep the negative value but only hide the minus - operator, right?

[snarayankar]

Hi,
Thank you for the prompt response, my proposal is to keep the negative value but only hide the minus - operator since i am using the prefix & suffix variables to set custom formatting. I hope this answers your question.
-San

[ArtemDintecom]

I think the minus hiding function is too specific for a public project. I will assume that this was necessary to implement the accounting type of negative numbers in parentheses. But in this case, you need to make full support for this mode in the library, for example, by setting negativeMode: 'Natural', 'Accounting'.