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GetType() can lie?
Based on the following question asked a few days ago in SO: GetType() and polymorphism and reading Eric Lippert's answer, I started thinking if making GetType() not be virtual really ensured that an object could not lie about its Type .
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.bashrc at ssh login
...ogue .bash_profile. It was created by the RVM install. I moved the RVM command to .profile and delete .bash_profile. All running fine now.
– Rod Daunoravicius
Oct 25 '13 at 10:02
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Difference between json.js and json2.js
...mented.
// These forms are obsolete. It is recommended that JSON.stringify and
// JSON.parse be used instead.
if (!Object.prototype.toJSONString) {
Object.prototype.toJSONString = function (filter) {
return JSON.stringify(this, filter);
};
Object.prototype.parseJSON = function (...
How do I use PHP to get the current year?
... out-of-date. How would I make the year update automatically with PHP 4 and PHP 5 ?
25 Answers
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Inline functions vs Preprocessor macros
...s in a function-like context, be advised that:
Macros are not type safe, and can be expanded regardless of whether they are syntatically correct - the compile phase will report errors resulting from macro expansion problems.
Macros can be used in context where you don't expect, resulting in proble...
How do I check if there are duplicates in a flat list?
...N log N) for non-hashable comparables, otherwise it's down to O(N squared) and there's nothing one can do about it:-(.
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overlay two images in android to set an imageview
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You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerDrawable. You have one of two choices: You can either define it in XML then simply set the image, or you can configure a LayerDrawable dynamically in code.
Solution #1 (via XM...
Split list into smaller lists (split in half)
...mber of parts you want, not just split 'in half'):
EDIT: updated post to handle odd list lengths
EDIT2: update post again based on Brians informative comments
def split_list(alist, wanted_parts=1):
length = len(alist)
return [ alist[i*length // wanted_parts: (i+1)*length // wanted_parts]...
Removing X-Powered-By
...re is no direct security risk, but as David C notes, exposing an outdated (and possibly vulnerable) version of PHP may be an invitation for people to try and attack it.
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What does rake db:test:prepare actually do?
I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation?
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