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How can bcrypt have built-in salts?
...ve an encryption key from the password using the salt and cost factor. Use it to encrypt a well-known string. Store the cost, salt, and cipher text. Because these three elements have a known length, it's easy to concatenate them and store them in a single field, yet be able to split them apart later...
Modify Address Bar URL in AJAX App to Match Current State
I'm writing an AJAX app, but as the user moves through the app, I'd like the URL in the address bar to update despite the lack of page reloads. Basically, I'd like for them to be able to bookmark at any point and thereby return to the current state.
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What are OLTP and OLAP. What is the difference between them?
...m don't give me an idea, or my knowledge is too insufficient to understand it.
5 Answers
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CSS Font Border?
With all the new CSS3 border stuff going on ( -webkit , ...) is it now possible to add a border to your font? (Like the solid white border around the blue Twitter logo). If not, are there any not-too-ugly hacks that will accomplish this in CSS/XHTML or do I still need to fire up Photoshop?
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What is the use of static constructors?
...atic constructor. Why and when would we create a static constructor and is it possible to overload one?
7 Answers
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What is Shelving in TFS?
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Shelving has many uses. The main ones are:
Context Switching: Saving the work on your current task so you can switch to another high priority task. Say you're working on a new feature, minding your own business, when your boss runs in and says "Ahhh! Bug Bug Bug!" and you have...
Preloading CSS Images
I have a hidden contact form which is deployed clicking on a button. Its fields are set as CSS background images, and they always appears a bit later than the div that have been toggled.
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Why can't I overload constructors in PHP?
...ing several different combinations of parameters, use the factory pattern with a private constructor.
For example:
public MyClass {
private function __construct() {
...
}
public static function makeNewWithParameterA($paramA) {
$obj = new MyClass();
// other initi...
Javascript trick for 'paste as plain text` in execCommand
I have a basic editor based on execCommand following the sample introduced here. There are three ways to paste text within the execCommand area:
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Sleeping in a batch file
When writing a batch file to automate something on a Windows box, I've needed to pause its execution for several seconds (usually in a test/wait loop, waiting for a process to start). At the time, the best solution I could find uses ping (I kid you not) to achieve the desired effect. I've found a be...