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Should I use 'has_key()' or 'in' on Python dicts?
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in is definitely more pythonic.
In fact has_key() was removed in Python 3.x.
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“The page you are requesting cannot be served because of the extension configuration.” error message
...amework you are using.
This is a common issue and happens when IIS is installed after VS or .NET framework.
Note - for Windows 8/10 users, see the other answer by JohnOpincar below. And also the comment/tip from Kevin Brydon.
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Center HTML Input Text Field Placeholder
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input{
text-align:center;
}
is all you need.
Working example in FF6. This method doesn't seem to be cross-browser compatible.
Your previous CSS was attempting to center the text of an input element which had a class of "placeholder".
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How to tell if UIViewController's view is visible
... be better to check first to see if it is already loaded. I've added the call to isViewLoaded to avoid this problem.
if (viewController.isViewLoaded && viewController.view.window) {
// viewController is visible
}
Since iOS9 it has became easier:
if viewController.viewIfLoaded?.windo...
What is a callback function?
What is a callback function?
21 Answers
21
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Select between two dates with Django
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Use the __range operator:
...filter(current_issue__isnull=True, created_at__range=(start_date, end_date))
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How to change bower's default components folder?
...ect that uses bower from twitter. I created a component.json to maintain all my dependency like jquery. Then I run bower install that installs everything in a folder named components . But I need to install the components in a different folder, e.g. public/components .
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Are PDO prepared statements sufficient to prevent SQL injection?
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The short answer is NO, PDO prepares will not defend you from all possible SQL-Injection attacks. For certain obscure edge-cases.
I'm adapting this answer to talk about PDO...
The long answer isn't so easy. It's based off an attack demonstrated here.
The Attack
So, let's start off b...
Angular.js: How does $eval work and why is it different from vanilla eval?
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@Yappli $eval doesn't evaluate JavaScript; it evaluates AngularJS expressions, which are kind of like a safer subset of JavaScript. "{id: 'val'}" is a valid AngularJS expression and should return a valid JS object. See the link...
Find size of Git repository
...nt ideas of "complete size" you could use:
git bundle create tmp.bundle --all
du -sh tmp.bundle
Close (but not exact:)
git gc
du -sh .git/
With the latter, you would also be counting:
hooks
config (remotes, push branches, settings (whitespace, merge, aliases, user
details etc.)
stashes (see ...