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How to delete items from a dictionary while iterating over it?
... a list.
As pointed out in comments simply convert mydict.keys() to a list by list(mydict.keys()) and it should work.
A simple test in the console shows you cannot modify a dictionary while iterating over it:
>>> mydict = {'one': 1, 'two': 2, 'three': 3, 'four': 4}
>>> for k,...
Why does !{}[true] evaluate to true in JavaScript?
...ue] is parsed as an empty statement block (not an object literal) followed by an array containing true, which is true.
On the other hand, applying the ! operator makes the parser interpret {} as an object literal, so the following {}[true] becomes a member access that returns undefined, and !{}[tru...
How can I use a local image as the base image with a dockerfile?
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This GitHub thread describes a similar issue of not finding local images by name.
By omitting a specific tag, docker will look for an image tagged "latest", so either create an image with the :latest tag, or change your FROM
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How do I find the location of the executable in C? [duplicate]
... #include <windows.h> and use the path string provided automatically by Windows in _pgmptr. It's easier than using the GetModuleFileName function because that has the possibility of failing.
– rsethc
May 1 '13 at 1:43
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Hiding the legend in Google Chart
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You can disable the legend by using 'none' as the position:
legend: {position: 'none'}
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Calculate the execution time of a method
...use DateTime to measure time execution in .NET.
UPDATE:
As pointed out by @series0ne in the comments section: If you want a real precise measurement of the execution of some code, you will have to use the performance counters that's built into the operating system. The following answer contains ...
@Nullable annotation usage
...).orElse("Really Nothing");
}
You can also throw some exception in there by swapping .orElse to
orElseThrow(() -> new Exception("Dont' send a null")).
If you don't want to use @Nullable, which adds nothing functionally, why not just name the parameter with mayBe... so your intention is clear....
how to use ng-option to set default value of select element
... them.But if we dont know the options and how can we display the first one by default?
– H Varma
Nov 23 '16 at 11:33
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More lines in command window
...e scrollbar's memory, I did the following:
Go to properties as mentioned by Kristina
Go to the layout tab (that's the third one)
Modify the screen buffer size's height - 9999 is the maximum.
As mentioned by Joey in the comments to Kristina's answer, this will not work on things you've already do...
Tuning nginx worker_process to obtain 100k hits per min
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@Ethan, why it should be devided by 2? If every second we get 100 new connections, and timeout is 5, then strting with sixth second, we will constantly have 5*100 connections that is still not terminated on the server side. we may have less if some users are...