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How to check version of python modules?
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771
I suggest using pip in place of easy_install. With pip, you can list all installed packages and ...
How to handle multiple cookies with the same name?
...an’t be sure which one will be sent back.
Edit: this information from 2010 appears to be outdated, it seems browsers can now send multiple cookies in return, see answer by @Nate below for details
share
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How to manually deprecate members
...forms, you can use several tags like so :
@available(tvOS, deprecated:9.0.1)
@available(iOS, deprecated:9.1)
@available(macOS, unavailable, message: "Unavailable on macOS")
func myFunc() {
// ...
}
More details in the Swift documentation.
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SQL “between” not inclusive
...ix this is:
SELECT *
FROM Cases
WHERE cast(created_at as date) BETWEEN '2013-05-01' AND '2013-05-01'
Another way to fix it is with explicit binary comparisons
SELECT *
FROM Cases
WHERE created_at >= '2013-05-01' AND created_at < '2013-05-02'
Aaron Bertrand has a long blog entry on dates ...
How to Sign an Already Compiled Apk
...release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000
then sign the apk using :
jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore my-release-key.keystore my_application.apk alias_name
check here for more info
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what is the preferred way to mutate a React state?
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165
concat returns a new array, so you can do
this.setState({list: this.state.list.concat([newO...
Is an entity body allowed for an HTTP DELETE request?
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15 Answers
15
Active
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Intersection and union of ArrayLists in Java
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124
Here's a plain implementation without using any third-party library. Main advantage over retai...
must appear in the GROUP BY clause or be used in an aggregate function
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Yes, this is a common aggregation problem. Before SQL3 (1999), the selected fields must appear in the GROUP BY clause[*].
To workaround this issue, you must calculate the aggregate in a sub-query and then join it with itself to get the additional columns you'd need to show:
SEL...
How to read a file without newlines?
...ead().splitlines()
Or you can strip the newline by hand:
temp = [line[:-1] for line in file]
Note: this last solution only works if the file ends with a newline, otherwise the last line will lose a character.
This assumption is true in most cases (especially for files created by text editors, ...