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How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...aints affecting it. Unfortunately this typically causes the view to vanish from the screen, since autolayout still takes place, and now there are no constraints to tell us where to put the view. So in addition to removing the constraints, I set the view's translatesAutoresizingMaskIntoConstraints to...
What is the purpose of Rank2Types?
...System F directly, because Haskell is designed to hide the details of that from you in the interest of simplicity.
But basically, the rough idea is that polymorphic types don't really have the a -> b form that they do in Haskell; in reality, they look like this, always with explicit quantifiers:...
grep a tab in UNIX
...
From 'man bash': Words of the form $'string' are treated specially. The word expands to string, with backslash-escaped characters replaced as specified by the ANSI C standard. Backslash escape sequences, if present, are ...
How to calculate the angle between a line and the horizontal axis?
... = P2_y - P1_y
deltaX = P2_x - P1_x
Then calculate the angle (which runs from the positive X axis at P1 to the positive Y axis at P1).
angleInDegrees = arctan(deltaY / deltaX) * 180 / PI
But arctan may not be ideal, because dividing the differences this way will erase the distinction needed to ...
How does autowiring work in Spring?
...nt for a Spring-MVC application is the DispatcherServlet, but it is hidden from you, and hence the direct interaction and bootstrapping of the application context happens behind the scene.
UserServiceImpl should also be defined as bean - either using <bean id=".." class=".."> or using the @Ser...
What is tail recursion?
...ll, the running_total is updated.
Note: The original answer used examples from Python. These have been changed to JavaScript, since Python interpreters don't support tail call optimization. However, while tail call optimization is part of the ECMAScript 2015 spec, most JavaScript interpreters don't...
Access POST values in Symfony2 request object
...er anywhere. In a controller in Symfony2, I want to access the POST value from one of my forms. In the controller I have:
...
How do you remove an invalid remote branch reference from Git?
...ranches under <name>. These stale branches have already been removed from the remote repository referenced by <name>, but are still locally available in "remotes/<name>".
With --dry-run option, report what branches will be pruned, but do no actually prune them.
However, it a...
How do I get the name of the current executable in C#?
...g program, that is the executable name of the program. In C/C++ you get it from args[0] .
20 Answers
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Error when changing to master branch: my local changes would be overwritten by checkout
...le and the branch that you are switching to has changes for this file too (from latest merge point).
Your options, as I see it, are - commit, and then amend this commit with extra changes (you can modify commits in git, as long as they're not pushed); or - use stash:
git stash save your-file-name
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