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Reading GHC Core
...eful. You can also use -dsuppress-coercions if you only want to get rid of casts (useful when there are lots of newtypes around).
– tibbe
May 26 '11 at 18:39
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How to join strings in Elixir?
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"my name is "
Also consider types. With <> you don't get any free casting:
iex(5)> "my name is " <> 1
** (ArgumentError) expected binary argument in <> operator but got: 1
(elixir) lib/kernel.ex:1767: Kernel.wrap_concatenation/3
(elixir) lib/kernel.ex:1758: Kernel.ex...
How to avoid “RuntimeError: dictionary changed size during iteration” error?
...ot iterate through a dictionary while its changing during for loop. Make a casting to list and iterate over that list, it works for me.
for key in list(d):
if not d[key]:
d.pop(key)
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How can I find WPF controls by name or type?
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@UrbanEsc, why do you cast child a second time? If you have childType of type T, you can write inside the if: yield return childType... no?
– Massimiliano Kraus
Oct 26 '16 at 15:19
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How can I get a precise time, for example in milliseconds in Objective-C?
...o 32-bit integer fields. You can use UnsignedWideToUInt64() instead of the cast if you prefer.
– Ken Thomases
Aug 24 '13 at 0:14
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How do I use itertools.groupby()?
...dged" in this way. Since all of the itertools are iterators, they must be cast to a builtin (list(), tuple()) or consumed in a loop/comprehension to display the contents. These are redundancies the author likely excluded to conserve space.
– pylang
Oct 25 '18...
Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?
...wCell = sender as? UITableViewCell { // do something }. If sender can't be cast to a UITableViewCell, "do something" won't execute.
– mbeaty
Mar 4 '15 at 3:23
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Type converting slices of interfaces
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Try interface{} instead. To cast back as slice, try
func foo(bar interface{}) {
s := bar.([]string)
// ...
}
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Preferred Java way to ping an HTTP URL for availability
...pose this is a GET request. Is there a way to send HEAD instead?
You can cast the obtained URLConnection to HttpURLConnection and then use setRequestMethod() to set the request method. However, you need to take into account that some poor webapps or homegrown servers may return HTTP 405 error for ...
What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java
... || in JS (and Perl) and the version in C, C++ and Java is that JS doesn't cast the result to a boolean. It's still a logical operator.
– Alnitak
Jun 22 '11 at 13:36
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