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In Objective-C, what is the equivalent of Java's “instanceof” keyword?
I would like to check whether an object (e.g. someObject ) is assignable (cast-able) to a variable of another type (e.g. SpecifiedType ). In Java, I can write:
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Viewing full version tree in git
I am using the command line version of Git and gitk. I want to see the full version tree, not just the part that is reachable from the currently checked out version. Is it possible?
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Rails find_or_create_by more than one attribute?
There is a handy dynamic attribute in active-record called find_or_create_by:
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Reset other branch to current without a checkout
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How to get orientation-dependent height and width of the screen?
I'm trying to programmatically determine the current height and width of my application. I use this:
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How to change the foreign key referential action? (behavior)
I have set up a table that contains a column with a foreign key, set to ON DELETE CASCADE (delete child when parent is deleted)
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How do I get jQuery autocompletion in TypeScript?
If I'm working in a TypeScript .ts file, what can I do to get jQuery Intellisense/autocompletion when I type the $ character?
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Find which commit is currently checked out in Git
I'm in the middle of a git bisect session.
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Django ModelForm: What is save(commit=False) used for?
Why would I ever use save(commit=False) instead of just creating a form object from the ModelForm subclass and running is_valid() to validate both the form and model?
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What does rake db:test:prepare actually do?
I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation?
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