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Is “double hashing” a password less secure than just hashing it once?

...ions, but the idea is the same. Bcrypt also goes a step beyond most PBKDF2-based solutions by using the derived key to encrypt a well-known plain text. The resulting cipher text is stored as the "hash," along with some meta-data. However, nothing stops you from doing the same thing with PBKDF2. Her...
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Flattening a shallow list in Python [duplicate]

...Lott: You inspired me to write a timeit app. I figured it would also vary based on the number of partitions (number of iterators within the container list) -- your comment didn't mention how many partitions there were of the thirty items. This plot is flattening a thousand items in every run, with ...
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Pass Variables by Reference in Javascript

...ys passed by value. Arrays and Objects are passed by reference or by value based on these conditions: if you are setting the value of an object or array it is Pass by Value. object1 = {prop: "car"}; array1 = [1,2,3]; if you are changing a property value of an object or array then it is Pass by Re...
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PHP Regex to get youtube video ID?

... Based on bokor's comment on Anthony's answer: preg_match("/^(?:http(?:s)?:\/\/)?(?:www\.)?(?:m\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"'>]+)/", $url, $matches...
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How to jQuery clone() and change id?

... +1 for Working demo :) and Thanks for looking over my answer. I have updated the post also added a working demo jsfiddle.net/HGtmR/4 – Selvakumar Arumugam Apr 12 '12 at 16:14 ...
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How to launch jQuery Fancybox on page load?

...document.ready()) appears to the be the trick used in the JSFiddler onload demos of Fancybox 2.0: $(window).load(function() { $.fancybox("test"); }); Bare in mind you may be using document.ready() elsewhere, and IE9 gets upset with the load order of the two. This leaves you with two options: ...
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Hash Map in Python

... It's built-in for Python. See dictionaries. Based on your example: streetno = {"1": "Sachine Tendulkar", "2": "Dravid", "3": "Sehwag", "4": "Laxman", "5": "Kohli" } You could then access it like so: sachine = streetno...
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Vagrant stuck connection timeout retrying

...or: VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit quest will fail to detect a 64-bit CPU and will not be able to boot – SKuijers Jan 9 '15 at 11:34 ...
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How can I export tables to Excel from a webpage [closed]

...de for those browser that do not support it. You may also need to perform base64 encoding on the data URI content, which may require a js library, as well as adding the string ';base64' after the mime type in the data URI. ...
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When does a process get SIGABRT (signal 6)?

... an example for this. Here when d is to be constructed, it first calls its base class A ctor, and passes inside pointer to itself. the A ctor calls pure virtual method before table was filled with valid pointer, because d is not constructed yet. #include<iostream> using namespace std; class ...