Some more typos in the Javascript API documentation

Question

Very minor, niggly things, but even so, they are there.
In the Javascript APIs, the function definition refers to the parameter pNd, but then in the Parameters subheading, it is referred to as pId (inconsistent).
The two that come to my immediate attention are: $v_Array and $f_ReturnChecked.
$v_Array( pNd )
Returns an item value as an array. Useful for multiselects and checkboxes.
Return Value
(Array)
Parameters
pId (DOM Node | string ID)
$f_ReturnChecked( pNd )
Returns an item value as an array. Useful for radio items and check boxes.
Return Value
(Array)
Parameters
pId (DOM node | string ID)Upon further searching the others that come up are:
$x_SwitchImageSrc(pNd, pSearch, pReplace) - the function description refers to pId.
$dom_AddInput(pThis,pType,pId,pName,pValue) - the function description place all paremeters in parenthesis, except for the last one in the sentence, pValue.
Ta,
Trent

Answer 1

I've just come accross this $nvl function in the javascript API. see: http://download.oracle.com/docs/cd/E17556_01/doc/apirefs.40/e15519/javascript_api.htm#CHDGAIJJ
The description reads:
*$nvl(pTest, pDefault)*If pTest is empty or false return pDefault otherwise return pTest.>
So this sugguests to me, that if the value of pTest is either empty or null or false, return the value of pDefault. However, when you pass in an empty string (or a false variable), it just returns that value.
And if you look at the function specification in apex_4_0.js
function $nvl(b,a){
     return(b != null) ? b : ((!!a) ? a:"")
}Obviously, passing in an empty string as pTest (or a false variable), will just return you that empty string (or false), as it isn't null.
In a javascript console:
*Test 1: False variable*var t = false;
undefined
t
false
$nvl(t, '0');
false
Test 2: Empty variable
var s = ''
undefined
s
$nvl(s, '0');
Test 3: null variable
var r = null
undefined
r
null
$nvl(r, '0');
"0">
Ta,
Trent