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Published on 2010-05-03T23:08:46Z
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Does any language or debug tool have a way to print out the scope chain for examination? Thanks.
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The Google Closure (GC) Javascript Library makes it very easy to create an AutoComplete UI, as this demo shows - http://closure-library.googlecode.com/svn/trunk/closure/goog/demos/autocomplete-basic.html .
Basically, all we have to do is define an array and pass it on as one of the parameters. I'd…
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Is it true that a closure is created in the following cases for foo, but not for bar?
Case 1:
<script type="text/javascript">
function foo() { }
</script>
foo is a closure with a scope chain with only the global scope.
Case 2:
<script type="text/javascript">
var…
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I have seen samples of closure from - http://stackoverflow.com/questions/36636/what-is-a-closure
Can anyone provide simple example of when to use closure?
Specifically, scenarios in which closure makes sense?
Lets assume that the language doesn't have closure support, how would one still achieve…
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Here's a quick example of using DTrace Dynamic Tracing to work out
what a PHP code base does.
I was reading the article Functional Programming in PHP by Patkos Csaba and wondering how
efficient this stype of programming is. I thought this would be a
good time to fire up DTrace and see what…
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When I add the Cometd plugin to Grails 1.2.1, grail's "jetty" debug environment will no longer start up.
I have been unable to debug this, not being familiar enough with the underlying components. (This is a big issue with Grails development in general. While it tries to hide everything from you…
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I am beginning the process of moving code over to PHP 5.3 and one of the most highly touted features of PHP 5.3 is the ability to use closures. My understanding of closures is that they allow anonymous functions, can be assigned to variable names, and have interesting scoping abilities.
From my…
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I've been reading a lot lately about the next release of Java possibly supporting closures. I feel like I have a pretty firm grasp on what closures are, but I can't think of a solid example of how they would make an Object-Oriented language "better". Can anyone give me a specific use-case where…
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Is there a simple way?
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Consider the following code:
using System;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
var square = new Square(4);
Console.WriteLine(square.Calculate());
}
}
class MathOp
{
…
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Is there a way to serialize a lexical closure in Python using the standard library? pickle and marshal appear not to work with lexical closures. I don't really care about the details of binary vs. string serialization, etc., it just has to work. For example:
def foo(bar, baz) :
def closure(waldo)…
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