Hi,
I am using the Prototype javascript library (http://prototype.conio.net)
which, among other cool stuff, adds methods and properties to standard
JavaScript objects. This is all find and dandy, unless someone tries
something like this:
var myArray = new Array('a', 'b', 'c', 'd', 'e');
for(letter in myArray){
doSomething(letter);
}
The problem is that Prototype has added a whole host of properties
(mostly methods) to Array, so the loop cycles through these as well,
almost certainly with crashing results.
Such is the case in DatePicker.js, formatDate():
[where bits is an array of date format chunks ('d', 'dd', 'm', 'mm' and
so on)]:
for (sect in bits) {
/* The nifty regex... */
}
I fixed this locally by doing this:
var allowedCombinations = "ddddmmmmyyyy";
for(sect in bits){
if(allowedCombinations.indexOf(sect.toLowerCase()) != -1){
/* do the nifty regex... */
}
}
I am sure there are better ways of doing this, but is there any chance
of getting something similar into the tapestry code? Javascript is a
dynamic language and there is nothing wrong with adding properties to
classes, so it seems unwise to rely on this sort of iterator.
Best wishes
John
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