CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I'm writing some javascript code which needs to run fast, and uses a lot of short-lived objects. Am I better off using an object pool, or just creating objects as I need them?

Are there any languages targeting JavaScript (like CoffeeScript) and written in Python? I found Pyjamas , but it’s GWT of Python as I see. I want a language that doesn’t need heavy runtime library and is able to be compiled to JavaScript. I found Mascara also, and it very satisfies my requirements except it’s license. CoffeeScript is ideal for me except it’s written in CoffeeScript itself. I have to compile [CoffeeScript-like language] source codes into JavaScript statically in Python application.

Curly braces in JavaScript regex is used to denote quantifiers. So writing

I am trying to create a div that should follow the handler as it is seen here: http://m1.dk/Priser/#tab:#calc,#abb

Scroll down for the getById.getByClassName vs. qSA comparison! If we wanted to select all elements of class "bar" which are inside the element with the ID "foo" , we could write this:

I am thinking of using Web Workers to provide some background functionality while a user is browsing my website (that's what Web Workers are for, right?). However, I don't want to take the risk of compromising the user experience by causing laggy scrolling, unresponsive controls, etc. Web Workers are mapped on OS threads, hence I would expect some control on the priority of these threads however, as far as I know, there's no such thing in the current API. Do you know a how to accomplish this? Even with a hack?

I want to track Right Mouse Click + Delete event on a html text input. I Succeed in mapping Right Mouse Click + Paste/Cut/Copy as below

I preface this by saying my Javascript experience is very weak. Lots of jQuery, very little real comprehension. I have read numerous books on javascript and, while I am not a poor programmer, the prototypal nature of Javascript just does not click with my brain.

I am coding a webpage to be viewed on iPad. It uses Safaris/Webkits drag & drop. I have exactly copied Safari's example drag & drop code but it wont work.

I know there are a number of "Try It Yourself" JavaScript editors, such as W3School's Try It editor , JSBin , and JSFiddle .

Is it possible to change text color based on background color using css?

When I type in an array into the parameter of the javascript math minimum and maximum functions, it returns the correct value:

I've just been helping out with some interviews for a new developer and JavaScript is a major part of my role and the role we're recruiting for. To be honest the candidate wasn't that good and he didn't really understand JavaScript however in the interview he confused JavaScript with C# and started to discuss memory leaks in JS. I wanted to intervene however it was at that point I realised how little I know about memory leaks in JS apart from the fact they use up lots of memory and slow things down.

Given this code: var reg = /a/g; console.log(reg.test("a")); console.log(reg.test("a")); I get this result:

HTML: <script type="text/javascript"> var x = "overriden"; </script> <script src="myjs.js"></script> myjs.js:

I need to execute a custom piece of JavaScript I got from some AJAX call. I could do an eval of the string or I could just append it in a script -tag to the DOM. Which method would be better?

I'm having a heckuva time transitioning to Dojo and the new AMD structure, and I'm really hoping someone can shed some light on the whole concept. I've been living on Google for the last few weeks trying to find information on not the usage, but the structure and design pattern trends in using this.

I found something very odd today: If you create objects with a constructor function and the new keyword, but return a function from the constructor, it behaves like so:

Possible Duplicate: Can I change all my links to just //?

We have an OpenSource Extension Similar like Greasemonkey only used in Firefox . Users can submit (Java)scripts for other Users to run. This gets abused by sending malicious code.

I'm reviewing some html produced by an outside shop. They use comments inside their external script loading tags - so far as i'm aware this was only useful for very old javascript unaware browsers is there any modern function for this or is it redundant?

I'm looking for a way to subscribe to the plus one button.

In this page I found a new JavaScript function type: // NOTE: "function*" is not supported yet in Firefox. // Remove the asterisk in order for this code to work in Firefox 13 function* fibonacci() { // !!! this is the interesting line !!! let [prev, curr] = [0, 1]; for (;;) { [prev, curr] = [curr, prev + curr]; yield curr; } }

Could someone explain me how databinding works in angularjs framework? I haven't found technical details on their site . It's more or less clear how it works when data is propagated from view to model. But how angularjs tracks changes of model properties without setters and getters. I found that there is javascript watchers that may do this work. But they are not supported in IE 6 and 7. So how angularjs knows that I changed e.g.:

Setting a property descriptor like this: Object.defineProperty(window, 'someFunction', { value: function() { alert('safe'); }, writable: false, enumerable: false, configurable: false });

Someone on JSPerf dropped an amazingly fast implementation for checking leap years of the ISO calendar (link: Odd bit manipulations ):

I just posted this to a gist: https://gist.github.com/2228570 var out = ''; function doWhat(){ out += '<li>'; console.log(out === '<li>'); // at this point, out will equal '<li>' return ''; } out += doWhat(); console.log(out, out === '<li>'); // I expect out to == '<li>', but it's actually an empty string!?

In this website there are a list of for loop variations. I can understand the usage of for(var i=0, len=arr.length; i<len ;i++) loop (where arr is an array), since the arr.length isnt calculated every step there is marginal performance gain. However what are the advantages of using the other variants? For instance loops like

Event.timeStamp The timeStamp attribute must return the value it was initialized to. When an event is created the attribute must be initialized to the number of milliseconds that has passed since 00:00:00 UTC on 1 January 1970.

I'm loading an order like this: $order = Mage::getModel('sales/order')->load(2886); $items = $order->getAllItems();

I am attempting to override the RegistrationFormType in the Symfony2 FOSUserBundle. I am following the documentation and believe i've covered everything. I've created a bundle to contain my overrides to the FOSUserBundle and the following code is from this bundle as well as the application config.

What I am trying to implement is a rather trivial "take search results (as in title & short description), cluster them into meaningful named groups" program in PHP.

How can i get a series of reproducible pseudorandom numbers in PHP?

Just found a piece of my code that had one original typo in it.

I have a website. If I login in the domain of this format http://example.com and then change my address to http://www.example.com , i find my account is not logged in. If I change the address to http://example.com , I find my account is logged in.

A little context: I needed to run PHP scripts in a browser, but I didn't want to go to all the trouble of installing a server and suffer the overhead of running a server on my computer and all the stuff that goes with it, including firewalls, blah blah blah.

I need to update source files (pull and update from the repository) in my production server, run migrations, and regenerate cached assets.

Whenever I Google things like "php authentication library" I continue to come up with a ton of results of authentication libraries designed for Code Igniter.

Alright all, Been doing a bit of research and want to know if anyone else has tried this... and what approach would you take.

While recreating my CMS, I wanted an alternative to the traditional parent/child approach for managing the sitemap / page hierarchy. I had remembered seeing the nested set model a while back, but couldn't remember what it was called. So, I stumbled upon a similar approach that I want to evaluate and compare the properties, making sure I won't run into dumb limitations later on because I didn't go with what is already time-tested. So, please advise if A) it's already been invented (what's it called?!), B) there are fundamental flaws in the properties, or C) it's a good approach (please give good justification!).

is it possible to create this image in PHP using GD ? i know i need to use GD and imagecreate, imagecolorallocate, imagedestroy etc... but i have no idea how to do the curve

I'm trying to add some error checking inside my PHP script. Is it valid to do this:

I'm having a hard time understanding when strtr would be preferable to str_replace or vice versa. It seems that it's possible to achieve the exact same results using either function, although the order in which substrings are replaced is reversed. For example:

i have 2 servsers 1 in america (NY) and 1 in europe (London)

For another question I have created some XML related code that works on my development machine but not on viper codepad where I tested it before adding it to my answer.

I have this in my PHP code, and it currently does the login request in the same login.php page but now i want to do it with Ajax. Basically I have this in the login.php

Hi stackoverflow friends I'm new in symfony2 , I don't know how to write a below query in symfony2 using createQuery()

Can I use a posted value in a PHP redirect header safetly without checking it:

I know there are natsort() and natcasesort() functions in php to sort array elements in natural order. I am trying to sort the following items.