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How to test equality of Swift enums with associated values
I want to test the equality of two Swift enum values. For example:
13 Answers
13
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Differences between Line and Branch coverage
... code, not including comments, conditionals, etc). Branch coverages checks if you took the true and false branch for each conditional (if, while, for). You'll have twice as many branches as conditionals.
Why do you care? Consider the example:
public int getNameLength(boolean isCoolUser) {
User...
“Insert if not exists” statement in SQLite
... to insert values ( users_id , lessoninfo_id ) in table bookmarks , only if both do not exist before in a row.
4 Answers
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Is it safe to parse a /proc/ file?
... on what property you want. But it's easy to end up with bugs in your code if you assume too much about the consistency of a file in /proc. For example, see this bug which came from assuming that /proc/mounts was a consistent snapshot.
For example:
/proc/uptime is totally atomic, as someone menti...
How to copy text programmatically in my Android app?
...ied", Toast.LENGTH_LONG).show();
– Shady Mohamed Sherif
Jan 11 '17 at 13:01
1
@AlaaM. I think thi...
Switching between Android Navigation Drawer image and Up caret when using fragments
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It's easy as 1-2-3.
If you want to achieve:
1) Drawer Indicator - when no fragments are in the Back Stack or the Drawer is opened
2) Arrow - when some Fragments are in the Back Stack
private FragmentManager.OnBackStackChangedListener
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How to print the contents of RDD?
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If you want to view the content of a RDD, one way is to use collect():
myRDD.collect().foreach(println)
That's not a good idea, though, when the RDD has billions of lines. Use take() to take just a few to print out:
myRDD...
Remove a cookie
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You May Try this
if (isset($_COOKIE['remember_user'])) {
unset($_COOKIE['remember_user']);
setcookie('remember_user', null, -1, '/');
return true;
} else {
return false;
}
...
Stripping everything but alphanumeric chars from a string in Python
...it -s \
"import string" \
"''.join(ch for ch in string.printable if ch.isalnum())"
10000 loops, best of 3: 57.6 usec per loop
$ python -m timeit -s \
"import string" \
"filter(str.isalnum, string.printable)"
10000 loops, best of 3: 37.9 usec per loop
$ python -m...
How do I drag and drop files into an application?
...);
}
void Form1_DragEnter(object sender, DragEventArgs e) {
if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Copy;
}
void Form1_DragDrop(object sender, DragEventArgs e) {
string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
f...