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How to set HTTP headers (for cache-control)?
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202
To use cache-control in HTML, you use the meta tag, e.g.
<meta http-equiv="Cache-control" c...
How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
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29 Answers
29
Active
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Get Mouse Position
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208
MouseInfo.getPointerInfo().getLocation() might be helpful. It returns a Point object correspon...
Auto code completion on Eclipse
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216
You can also set auto completion to open automatically while typing.
Go to Preferences > J...
Compare two files line by line and generate the difference in another file
I want to compare file1 with file2 and generate a file3 which contains the lines in file1 which are not present in file2.
1...
how to use ng-option to set default value of select element
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12 Answers
12
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Determine the number of NA values in a column
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321
You're over-thinking the problem:
sum(is.na(df$col))
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Rails 3 migrations: Adding reference column?
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205
If you are using the Rails 4.x you can now generate migrations with references, like this:
ra...
Installing Python 3 on RHEL
... python executable (safer, at least on some distros yum needs python to be 2.x, such as for RHEL6) - you can install python3.* as a concurrent instance to the system default with an altinstall:
$ make altinstall
Now if you want an alternative installation directory, you can pass --prefix to the ...
How to search for a part of a word with ElasticSearch
...": {
"mynGram": {
"type": "nGram",
"min_gram": 2,
"max_gram": 50
}
}
}
}
}
Let's you find word parts up to 50 letters. Adjust the max_gram as you need. In german words can get really big, so I set it to a high value.
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