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How does an underscore in front of a variable in a cocoa objective-c class work?
...e property) knows which ivar to use. Specifically, in your implementation file, your synthesize should look like this:
@synthesize missionName = _missionName;
More generically, this is:
@synthesize propertyName = _ivarName;
...
How do I add a submodule to a sub-directory?
...m the specified subdirectory of a repository, with the difference that any file paths which it prints are prefixed with the full path from the top of the working tree.
This is useful for shell scripts where we may want to cd to the top of the working tree but need to handle relative paths given...
PHP - how to create a newline character?
... single quoted string. But that does not render a newline in a simple text file.
– Fencer
Mar 12 '19 at 10:26
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Deserializing a JSON into a JavaScript object
... {
"nodeTo": function(){
return "delete server files - you have been hacked!";
}(),
"nodeFrom": "graphnode1",
"data": {
"$color": "#557EAA"
}
}
],
"data": {
"$color": "#EBB056",
"$type": "tria...
Add a default value to a column through a migration
...to was added in Rails 5+ in this commit: github.com/rails/rails/pull/20018/files
– Joshua Pinter
Dec 29 '18 at 19:03
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Easiest way to detect Internet connection on iOS?
...load the sample code here
Include the Reachability.h and Reachability.m files in your project. Take a look at ReachabilityAppDelegate.m to see an example on how to determine host reachability, reachability by WiFi, by WWAN etc. For a very simply check of network reachability, you can do something...
How to get the caller's method name in the called method?
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Hello, I am getting below error when i run this: File "/usr/lib/python2.7/inspect.py", line 528, in findsource if not sourcefile and file[0] + file[-1] != '<>': IndexError: string index out of range Can u please provide sugge...
How do I set up a basic Ruby project?
I want to create a small Ruby project with 10 ~ 20 classes/files. I need some gems and I want to use RSpec as test framework.
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Is Dvorak typing appropriate for programming? [closed]
...ut nowadays I mostly use vim only for simple things, e.g. modifying config files over SSH.
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Find index of last occurrence of a sub-string using T-SQL
...ysical_name), charindex('\', reverse(physical_name)) -1))
from sys.master_files mf
shows how to extract the actual database file names from from their "physical names", no matter how deeply nested in subfolders. This does search for only one character (the backslash), but you can build on this f...