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How to test equality of Swift enums with associated values
...d values.
So if you're on Swift 4.1 or newer, the following will automatically synthesize the necessary methods such that XCTAssert(t1 == t2) works. The key is to add the Equatable protocol to your enum.
enum SimpleToken: Equatable {
case Name(String)
case Number(Int)
}
let t1 = SimpleToke...
How to call C from Swift?
Is there a way to call C routines from Swift?
6 Answers
6
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Can I use git diff on untracked files?
...The upshot is that your "untracked" file now becomes a modification to add all the content to this zero-length file, and that shows up in the "git diff" output.
git diff
echo "this is a new file" > new.txt
git diff
git add -N new.txt
git diff
diff --git a/new.txt b/new.txt
index e69de29..3b2ae...
stopPropagation vs. stopImmediatePropagation
....js"></script>
<p>example</p>
Note that the order of the event binding is important here!
$("p").click(function(event) {
// This function will now trigger
$(this).css("background-color", "#f00");
});
$("p").click(function(event) {
event.stopImmediateP...
jQuery object equality
...
your equals function seems to be order-sensitive. something like stackoverflow.com/a/29648479 would work in more cases, although it's slower.
– Jayen
Dec 26 '15 at 1:57
...
What is __main__.py?
...
Often, a Python program is run by naming a .py file on the command line:
$ python my_program.py
You can also create a directory or zipfile full of code, and include a __main__.py. Then you can simply name the directory or zipfile on the command line, a...
Why does Math.round(0.49999999999999994) return 1?
...ting, they took that bit out for Java 7 (the docs I linked to) -- maybe in order to avoid causing this sort of odd behavior by triggering a (further) loss of precision.
– T.J. Crowder
Mar 28 '12 at 7:46
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Convert light frequency to RGB?
... colour space - sRGB"
*
* @param xyz XYZ values in a double array in the order of X, Y, Z. each value in the range of [0.0, 1.0]
* @return RGB values in a double array, in the order of R, G, B. each value in the range of [0.0, 1.0]
*/
public static double[] srgbXYZ2RGB(double[] xyz) {
double...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...
Judging by my disability to find a solution on the web and the lack of answers here, I guess you're right ):
– jwd
Apr 11 '11 at 16:27
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How can I see the raw SQL queries Django is running?
...t the output of the query is not valid SQL, because:
"Django never actually interpolates the parameters: it sends the query and the parameters separately to the database adapter, which performs the appropriate operations."
From Django bug report #17741.
Because of that, you should not send qu...