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How to check if a value exists in a dictionary (python)
...t comprehension over sequence ...], use any(value in sequence ...), to avoid creating a list object you don't use for anything else, and to short-circuit when the value has been found.
– Martijn Pieters♦
Aug 15 '19 at 12:23
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How to select a node using XPath if sibling node has a specific value?
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Seems I actually didn't read the title. :) Answer stays valid anyway.
– Jens Erat
Jun 11 '13 at 13:34
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Android: how to make an activity return results to the activity which calls it?
...ing like below. You should pass the requestcode as shown below in order to identify that you got the result from the activity you started.
startActivityForResult(new Intent(“YourFullyQualifiedClassName”),requestCode);
In the activity you can make use of setData() to return result.
Intent dat...
What's the best way to join on the same table twice?
...t.PhoneNumber1
JOIN Table2 t2 ON t2.PhoneNumber = t.PhoneNumber2
What i did:
No need to specify INNER - it's implied by the fact that you don't specify LEFT or RIGHT
Don't n-suffix your primary lookup table
N-Suffix the table aliases that you will use multiple times to make it obvious
*One way...
How to set an environment variable only for the duration of the script?
...u just told him will persist beyond the end of his script. That is why I said your answer was misleading - it might be correct, it might not, but it's definitely got a part that's unnecessary and confusing because it may cause someone to think "export" is the necessary element he was looking for.
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How does “make” app know default target to build if no target is specified?
...al variable called .DEFAULT_GOAL. You can even unset this variable in the middle of the Makefile, causing the next target in the file to become the default target.
Ref: The Gnu Make manual - Special Variables
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Show filename and line number in grep output
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
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invalid target release: 1.7
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In IntelliJ IDEA this happened to me when I imported a project that had been working fine and running with Java 1.7. I apparently hadn't notified IntelliJ that java 1.7 had been installed on my machine, and it wasn't finding my $JAVA_HOM...
When do I use fabs and when is it sufficient to use std::abs?
... double and float arguments. I prefer this because it ensures that if I accidentally strip the std:: off the abs, that the behavior remains the same for floating point inputs.
I just spent 10 minutes debugging this very problem, due to my own mistake of using abs instead of std::abs. I assumed that...
What's the optimum way of storing an NSDate in NSUserDefaults?
...e zones, precision, etc). There is no formatter involved, as others have said.
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