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How to turn on line numbers in IDLE?
...t window, go to Options and click Show Line Numbers.
To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box.
Version 3.7 or older:
Unfortunately there is not an option to display line numbers in IDLE although there is an enhancem...
Finding what branch a Git commit came from
...commit is on
git branch -a --contains <commit>
This will tell you all branches which have the given commit in their history. Obviously this is less useful if the commit's already been merged.
Search the reflogs
If you are working in the repository in which the commit was made, you can sea...
What is the entry point of swift code execution?
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The entry point in a plain Swift module is the file in the module called main.swift. main.swift is the only file which is allowed to have expressions and statements at the top level (all other Swift files in the module can only contain declarations).
Cocoa Touch uses the @UIApplicationMain ...
Deleting a Google App Engine application
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You can send them an email if you REALLY want the ID. They can give it back for a specific project. I haven't personally done it but I saw people in google groups saying it's possible
– Patrice
Jul 31 '14 at 16:13
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How to sort an ArrayList in Java [duplicate]
...Fruit fruit) {
//write code here for compare name
}
Then do call sort method
Collections.sort(fruitList);
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#pragma once vs include guards? [duplicate]
... time but #pragma once is very well supported across compilers but not actually part of the standard. The preprocessor may be a little faster with it as it is more simple to understand your exact intent.
#pragma once is less prone to making mistakes and it is less code to type.
To speed up compil...
Unable to create a constant value of type Only primitive types or enumeration types are supported in
...I'm concerned about performance I should avoid doing this as it would load all data in memory first and then query it. Should I write raw sql for this scenarios?
– Arvand
Dec 28 '15 at 11:30
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RSpec: describe, context, feature, scenario?
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The context is an alias for describe, so they are functionally equivalent. You can use them interchangeably, the only difference is how your spec file reads. There is no difference in test output for example. The RSpec book says:
"We tend to use describe() for things and context...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...s Y which extends Z which extends A), results might be different.
it is usually advised to write the code first picking one of the operators (the most convenient) and then profile your code to check if there are a performance bottleneck. Maybe this operator is negligible in the context of your code,...
How to return a result from a VBA function
...also worth mentioning that the behaviour of the function differs when you call it from a spreadsheet, compared with calling it from another VBA function or Sub.
– Doug Jenkins
Sep 13 '18 at 23:08
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