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Why dict.get(key) instead of dict[key]?
...ever you choose it to be), whereas
dictionary["bogus"]
would raise a KeyError.
If omitted, default_value is None, such that
dictionary.get("bogus") # <-- No default specified -- defaults to None
returns None just like
dictionary.get("bogus", None)
would.
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How do you create a static class in C++?
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OJ, you have a syntax error. The static keyword should only be used in the class definition, and not in the method definition.
– andrewrk
Aug 13 '08 at 18:02
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How to drop multiple columns in postgresql
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Does not work for me. I get: ERROR: 42601: syntax error at or near ","
– Audrey
Nov 5 '14 at 12:12
9
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Java Enum definition
...and this is the main argument why I am avoiding this. I've never seen cast errors in this case + I know that there are some inevitable cast errors - i.e. when one stores objects of multiple types to a same collection. So if unchecked casts are not critical and the design in somewhat complex (Node<...
Only get hash value using md5sum (without filename)
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How come echo ($(echo -n foo | md5sum)) doesn't work? Errors out bash: syntax error near unexpected token $(echo -n foo | md5sum)'
– lkraav
Aug 26 '15 at 4:42
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How do I compare two string variables in an 'if' statement in Bash? [duplicate]
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The double equals sign is an error in the first case. Bash tolerates it, but the portable variant is if [ "$s1" = "$s2" ]. See also Rahul's answer
– tripleee
Aug 12 '16 at 4:59
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Get a list of URLs from a site [closed]
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It errored out for me: ::::::: An error occured There was an error while accessing the URL specified: 159.121.ssss Please make sure to specify the correct website URL and resubmit your request.
– JustJohn
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How to specify the location with wget?
...) adding a trailing slash to "directory prefix" would cause a double slash error (i.e., my/favorite/dir/prefix//) furthermore, considering the semantics, "directory prefix" would not require a trailing slash.
– Timothy L.J. Stewart
Apr 7 '17 at 21:14
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Change date of git tag (or GitHub Release based on it)
...Phrogz/docubot.git
! [rejected] 1.0.1 -> 1.0.1 (already exists)
error: failed to push some refs to 'git@github.com:Phrogz/docubot.git'
hint: Updates were rejected because the tag already exists in the remote.
Instead, you must remove the tag locally:
git tag -d 1.0.1
Push that deleti...
Should IBOutlets be strong or weak under ARC?
... too slow because of weak IBOutlets.
Not using weak may be perceived as an error.
Bottom line: Since iOS 6 we can't get this wrong anymore as long as we don't use view unloading. Time to party. ;)
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