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Using LIMIT within GROUP BY to get N results per group?
The following query:
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How to check if a file exists in the Documents directory in Swift?
How to check if a file exists in the Documents directory in Swift ?
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Get current date in milliseconds
Can any one give me an idea how to get the current date in milliseconds?
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How to get all properties values of a JavaScript Object (without knowing the keys)?
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By using a simple for..in loop:
for(var key in objects) {
var value = objects[key];
}
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How to change folder with git bash?
.../c/project/
Tip:
Use the pwd command to see which path you are currently in, handy when you did a right-click "Git Bash here..."
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How to convert a string to utf-8 in Python
...8 characters to my Python server, but when I retrieve it from the query string, the encoding that Python returns is ASCII. How can I convert the plain string to utf-8?
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Detect and exclude outliers in Pandas data frame
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If you have multiple columns in your dataframe and would like to remove all rows that have outliers in at least one column, the following expression would do that in one shot.
df = pd.DataFrame(np.random.randn(100, 3))
from scipy import stats
df[(np.ab...
New features in java 7
What new features in java 7 is going to be implemented?
And what are they doing now?
8 Answers
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How could I use requests in asyncio?
I want to do parallel http request tasks in asyncio , but I find that python-requests would block the event loop of asyncio . I've found aiohttp but it couldn't provide the service of http request using a http proxy.
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How to have Android Service communicate with Activity
I'm writing my first Android application and trying to get my head around communication between services and activities. I have a Service that will run in the background and do some gps and time based logging. I will have an Activity that will be used to start and stop the Service.
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