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Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...tching of data)
Copy
copy is required when the object is mutable. Use this if you need the value of the object as it is at this moment, and you don't want that value to reflect any changes made by other owners of the object. You will need to release the object when you are finished with it because y...
How to print a int64_t type in C
...
And, if using C++ on Linux, be sure to #define __STDC_FORMAT_MACROS before including inttypes.h.
– csl
Nov 28 '14 at 8:50
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Git keeps asking me for my ssh key passphrase
...key parameters of all identities. -k Load only keys and not certificates. -c Require confirmation to sign using identities -t life Set lifetime (in seconds) when adding identities. -d Delete identity. -D Delete all identities. -x Lock agen...
How to run Node.js as a background process and never die?
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Simple solution (if you are not interested in coming back to the process, just want it to keep running):
nohup node server.js &
There's also the jobs command to see an indexed list of those backgrounded processes. And you can kill a b...
MySQL Error 1215: Cannot add foreign key constraint
...y are primary keys in their own tables. I have done both of these things, if I'm not mistaken. Any other help you guys could offer?
...
Add an element to an array in Swift
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As of Swift 3 / 4 / 5, this is done as follows.
To add a new element to the end of an Array.
anArray.append("This String")
To append a different Array to the end of your Array.
anArray += ["Moar", "Strings"]
anArray.append(conte...
Toggle input disabled attribute using jQuery
...return this.each(function() {
var $this = $(this);
if ($this.attr('disabled')) $this.removeAttr('disabled');
else $this.attr('disabled', 'disabled');
});
};
})(jQuery);
Example link.
EDIT: updated the example link/code to maintaining chainability!...
What does android:layout_weight mean?
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With layout_weight you can specify a size ratio between multiple views. E.g. you have a MapView and a table which should show some additional information to the map. The map should use 3/4 of the screen and table should use 1/4 of the screen. Then you will...
How to get the home directory in Python?
...on all platforms:
from os.path import expanduser
home = expanduser("~")
If you're on Python 3.5+ you can use pathlib.Path.home():
from pathlib import Path
home = str(Path.home())
share
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improv...
How to write loop in a Makefile?
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The following will do it if, as I assume by your use of ./a.out, you're on a UNIX-type platform.
for number in 1 2 3 4 ; do \
./a.out $$number ; \
done
Test as follows:
target:
for number in 1 2 3 4 ; do \
echo $$number ; \
do...