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How to turn off INFO logging in Spark?
...rk directory:
cp conf/log4j.properties.template conf/log4j.properties
Edit log4j.properties:
# Set everything to be logged to the console
log4j.rootCategory=INFO, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.err
log4j.appender.console.layou...
EF Migrations: Rollback last applied migration?
This looks like a really common task, but I can't find an easy way to do it.
14 Answers
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How do I remove an item from a stl vector with a certain value?
... was no method on the vector class that allowed the removal of an element with a certain value. This seems like a common operation, and it seems odd that there's no built in way to do this.
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Check if an element is present in an array [duplicate]
...alse
[1, 2, 3].includes(1, 2); // false (second parameter is the index position in this array at which to begin searching)
As of JULY 2018, this has been implemented in almost all major browsers, if you need to support IE a polyfill is available.
Edit: Note that this returns false if the item in...
Is there a way to chain multiple value converters in XAML?
I've got a situation in which I need to show an integer value, bound to a property on my data context, after putting it through two separate conversions:
...
Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...ll(" +", " ");
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one replaceAll, but this is much less readable than the trim() solution. Nonethele...
In CMake, how can I test if the compiler is Clang?
...ve a set of cross-platform CMake build scripts , and we support building with Visual C++ and GCC .
5 Answers
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How do I decode HTML entities in Swift?
I am pulling a JSON file from a site and one of the strings received is:
23 Answers
23...
How to convert string to boolean php
...se of that value.
$test_mode_mail = $string === 'true'? true: false;
EDIT: the above code is intended for clarity of understanding. In actual use the following code may be more appropriate:
$test_mode_mail = ($string === 'true');
or maybe use of the filter_var function may cover more boolea...
How to set JAVA_HOME in Linux for all users
...follow
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edited May 23 '18 at 19:41
Robin Green
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