Can anyone explain how the parseInt() functions works and what the Radix Parameter is?
As a case study, I am trying to get to grips with this code snippet:
var maxChars = parseInt( formField.attr('maxlength') ? formField.attr('maxlength') : counter.text() );
Can you also explain how this code works? Why is formField.attr('maxlength') there twice? I find the use of operators here pretty darn confusing!
How does the Radix Parameter work in this example?
The radix
is another name for base
, i.e. 2 for binary, 10 for decimal, 16 for hexadecimal, explained in more detail on the Mozilla Developer Network site.
In your example there is no radix parameter, so the interpreter will fall back to the default behaviour, which typically treats numbers as decimal, unless they start with a zero (octal) or 0x
(hexadecimal).