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Can I change multiplier property for NSLayoutConstraint?
...an add both sets of constraints and decide which should be active at any time:
NSLayoutConstraint *standardConstraint, *zoomedConstraint;
// ...
// switch between constraints
standardConstraint.active = NO; // this line should always be the first line. because you have to deactivate one before act...
android View not attached to window manager
I am having some of the following exceptions:
13 Answers
13
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Test whether a glob has any matches in bash
...for the existence of a single file, I can test for it using test -e filename or [ -e filename ] .
19 Answers
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Difference between style = “position:absolute” and style = “position:relative”
Can any one tell me the Difference between style = "position:absolute" and style = "position:relative" and how they differ in case I add it to div / span / input elements?
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How do I measure separate CPU core usage for a process?
Is there any way to measure a specific process CPU usage by cores?
8 Answers
8
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variable === undefined vs. typeof variable === “undefined”
... "foo is not defined".
For local variables (which you know are declared somewhere), no such error would occur, hence the identity check.
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The model used to open the store is incompatible with the one used to create the store
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Deleting the app is sometimes not the case! Suggest, your app has already been published! You can't just add new entity to the data base and go ahead - you need to perform migration!
For those who doesn't want to dig into documentation and is sea...
Ruby, remove last N characters from a string?
...te_suffix! to achieve this in a fast and readable manner.
The docs on the methods are here.
If you know what the suffix is, this is idiomatic (and I'd argue, even more readable than other answers here):
'abc123'.delete_suffix('123') # => "abc"
'abc123'.delete_suffix!('123') # => "abc...
How to enter in a Docker container already running with a new TTY
... shell in order to "poke around" inside it and examine the files. At the moment, if I attach to the container, I am left looking at the Apache daemon and cannot run any commands.
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Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]
The common sense tells that the Doxygen comment blocks have to be put in the header files where the classes, structs, enums, functions, declarations are. I agree that this is a sound argument for a libraries that are mean to be distributed without its source (only headers and libs with object code)....