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How can I use Async with ForEach?
... at the await Task.WhenAll line, allowing natural exception handling.
You know that the tasks are complete at the end of this method, since it does an await Task.WhenAll. If you use async void, you cannot easily tell when the operations have completed.
This approach has a natural syntax for retrievi...
Add … if string is too long PHP [duplicate]
... effect with this CSS:
.ellipsis {
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
Now, assuming the element has a fixed width, the browser will automatically break off and add the ... for you.
...
What does a lazy val do?
...ng resources. If we suppose that y has no side effects and that we do not know how often it is accessed (never, once, thousands of times) it is useless to declare it as def since we don't want to execute it several times.
If you want to know how lazy vals are implemented, see this question.
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How to use dashes in HTML-5 data-* attributes in ASP.NET MVC
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This problem has been addressed in ASP.Net MVC 3. They now automatically convert underscores in html attribute properties to dashes. They got lucky on this one, as underscores are not legal in html attributes, so MVC can confidently imply that you'd like a dash when you use an u...
Converting pixels to dp
...tan is saying: this is dangerous and you shouldn't be using it, especially now when device form factors are becoming so complex.
– Saket
Aug 5 '19 at 17:50
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Error Code: 2013. Lost connection to MySQL server during query
... Following stackoverflow.com/q/16877574/395857, this issue is now solved (bugs.mysql.com/bug.php?id=69395)
– Franck Dernoncourt
Jun 18 '13 at 3:46
4
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Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4
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Just ran into this problem. I don't know if it's the same thing that hit your code, but for me the root cause was because I forgot to put name= on the last argument of the url (or path in Django 2.0+) function call.
For instance, the following functions throw t...
How do I compute derivative using Numpy?
...**2 + 1
def d_fun(x):
h = 1e-5
return (fun(x+h)-fun(x-h))/(2*h)
Now, you can numerically find the derivative at x=5:
In [1]: d_fun(5)
Out[1]: 9.999999999621423
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How do you reset the stored credentials in 'git credential-osxkeychain'?
...eading this figures out how to do from the command line, would be nice to know.
– funroll
Jan 28 '14 at 13:55
1
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How do I test if a string is empty in Objective-C?
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Let me know if I'm wrong, but I think you could also omit == 0 part and add a negation in front: ![string length]. Seems more clean.
– damirstuhec
Aug 31 '14 at 20:29
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