Issue type:

• ➕ Feature request

Short description

A new to string operator for number formatting.

Input=>Number, String
output=>Formatted number string
like
NumberFormatting(3, "0.00")=>"3.00"
NumberFormatting(12495, "E")=>"1.2495E+4"
etc...
Java has a existed DecimalFormat class to do this

uhhh, nope
I want a alone operator for output a formatted number as a format style.
Input=>Number(Integer, Double), String
output=>Formatted number string
like
NumberFormatting(3, "0.00")=>"3.00"
NumberFormatting(12495, "E")=>"1.2495E+4"
etc...
Java has a existed function to do this

And this is why I ask for clear and concise descriptions.

Duplicate of #597. (Please amend the linked issue if you want additional things)