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How to convert a char array to a string?
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375
The string class has a constructor that takes a NULL-terminated C-string:
char arr[ ] = "This...
My images are blurry! Why isn't WPF's SnapsToDevicePixels working?
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235
You may want to consider trying a new property available now in WPF4. Leave the RenderOptions.B...
Can C++ code be valid in both C++03 and C++11 but do different things?
Is it possible for C++ code to conform to both the C++03 standard and the C++11 standard, but do different things depending on under which standard it is being compiled?
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Why should I use 'li' instead of 'div'?
...ist.
– Arve Systad
Feb 14 '09 at 21:39
3
@Arve. My point was to get to the functional difference ...
How do I force a UITextView to scroll to the top every time I change the text?
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37 Answers
37
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How do I append one string to another in Python?
...hon -m timeit -s"s=''" "for i in xrange(10):s+='a'"
1000000 loops, best of 3: 1.85 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(100):s+='a'"
10000 loops, best of 3: 16.8 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(1000):s+='a'"
10000 loops, best of 3: 158 usec per loop
$...
Show pending migrations in rails
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rake db:migrate:status (Rails 3 to 5) or rails db:migrate:status (Rails 5) will accomplish this. See this commit.
up means the migration has been run. down means the migration has not been run.
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Best way to test if a row exists in a MySQL table
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Chris ThompsonChris Thompson
32.6k1111 gold badges7474 silver badges104104 bronze badges
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How to create a button programmatically?
... correctly place the button for each iPhone screen.
Updated code to Swift 3.1:
override func viewDidLoad() {
super.viewDidLoad()
let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
button.backgroundColor = .green
button.setTitle("Test Button", for: .normal)
butt...
How does cookie based authentication work?
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3 Answers
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