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Which cryptographic hash function should I choose?
...Indeed, MD5 is often still used in applications where the smaller key size and speed are beneficial. That said, due to its flaws, researchers recommend the use of other hash functions in new scenarios.
SHA1 has a flaw that allows collisions to be found in theoretically far less than the 2^80 steps ...
What is Type-safe?
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Type safety means that the compiler will validate types while compiling, and throw an error if you try to assign the wrong type to a variable.
Some simple examples:
// Fails, Trying to put an integer in a string
String one = 1;
// Also fails.
int foo = "bar";
This also applies to method argume...
Is floating point math broken?
...is like this. In most programming languages, it is based on the IEEE 754 standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly re...
When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or
...omething similar to a flowchart that walks me through a bunch of questions and out pops the correct answer – no new new scope, new child scope, or new isolate scope – but that is likely asking for too much. Here's my current paltry set of guidelines:
...
OO Design in Rails: Where to put stuff
I'm really enjoying Rails (even though I'm generally RESTless), and I enjoy Ruby being very OO. Still, the tendency to make huge ActiveRecord subclasses and huge controllers is quite natural (even if you do use a controller per resource). If you were to create deeper object worlds, where would you p...
Reference: Comparing PHP's print and echo
What is the difference between PHP's print and echo ?
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How to remove leading and trailing whitespace in a MySQL field?
I have a table with two fields (countries and ISO codes):
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HTML: Include, or exclude, optional closing tags?
...unless I have a very good reason not to) because it lends to more readable and updateable code.
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
I'm running a PHP script and continue to receive errors like:
28 Answers
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How to pip or easy_install tkinter on Windows
My Idle is throwing errors that and says tkinter can't be imported.
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