Function: capitalize()
capitalize(
this,left):string|Markup
Return the input string with the first character in upper case and the rest lowercase.
Parameters
• this: FilterContext
An object containing a reference to the active render context and any keyword/named arguments.
• left: unknown
Any value. Will be coerced to a string if it's not one already.
Returns
string | Markup
The input string with the first character in upper case and the rest lowercase.