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How to calculate the number of occurrence of a given character in each row of a column of strings?
I have a data.frame in which certain variables contain a text string. I wish to count the number of occurrences of a given character in each individual string.
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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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Regex to replace multiple spaces with a single space
... just replace \s\s+ with ' ':
string = string.replace(/\s\s+/g, ' ');
If you really want to cover only spaces (and thus not tabs, newlines, etc), do so:
string = string.replace(/ +/g, ' ');
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How do I find all files containing specific text on Linux?
I'm trying to find a way to scan my entire Linux system for all files containing a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name.
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WakeLock 扩展：保持设备唤醒扩展，防止系统休眠和电池优化 · App Inventor 2 中文网
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Q: 使用唤醒锁会大量消耗电池吗？
Q: WiFi 锁有什么作用？
Q: 应用被系统杀死怎么办？
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WakeLock 扩展
WakeLock 是一个免费的设备唤醒管理扩...
What is the tilde (~) in the enum definition?
I'm always surprised that even after using C# for all this time now, I still manage to find things I didn't know about...
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