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Can someone explain the dollar sign in Javascript?
...riable means nothing special to the interpreter, much like an underscore.
From what I've seen, many people using jQuery (which is what your example code looks like to me) tend to prefix variables that contain a jQuery object with a $ so that they are easily identified and not mixed up with, say, in...
How can I quickly sum all numbers in a file?
I have a file which contains several thousand numbers, each on it's own line:
33 Answers
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Swipe to Delete and the “More” button (like in Mail app on iOS 7)
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How to Implement
It looks like iOS 8 opens up this API. Hints of such functionality are present in Beta 2.
To get something working, implement the following two methods on your UITableView's delegate to get the desired effect (see gist for an example).
- tableView:editActionsForRowAtI...
The builds tools for v120 (Platform Toolset = 'v120') cannot be found
...y this is caused by msbuild being moved into .net but I havn't seen how to fix it yet.
16 Answers
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR
In ARC enabled code, how to fix a warning about a potential retain cycle, when using a block-based API?
7 Answers
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Python list of dictionaries search
...: 7 },
... { "name": "Dick", "age": 12 }
... ]
>>> next(item for item in dicts if item["name"] == "Pam")
{'age': 7, 'name': 'Pam'}
If you need to handle the item not being there, then you can do what user Matt suggested in his comment and provide a default using a slightly different ...
How to resize a tableHeaderView of a UITableView?
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FYI: I've gotten this to work by modifying the tableHeaderView and re-setting it. In this case, i'm adjusting the size of the tableHeaderView when the UIWebView subview has finished loading.
[webView sizeToFit];
CGRect newFr...
What does $@ mean in a shell script?
What does a dollar sign followed by an at-sign ( @ ) mean in a shell script?
6 Answers
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How to access data/data folder in Android device?
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Accessing the files directly on your phone is difficult, but you may be able to copy them to your computer where you can do anything you want with it.
Without rooting you have 2 options:
If the application is debuggable you can use the r...
iOS White to Transparent Gradient Layer is Gray
I have a CAGradientLayer inserted to the bottom of this small detail view that pops up at the bottom of the app. As you can see, I've set the colors from white to clear, but there's this strange gray tint that is showing up. Any ideas?
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