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What's the difference between == and .equals in Scala?
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204
You normally use ==, it routes to equals, except that it treats nulls properly. Reference equali...
Swift alert view with OK and Cancel: which button tapped?
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netigger
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answered Aug 26 '14 at 17:51
Michael WildermuthM...
codestyle; put javadoc before or after annotation?
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edited Sep 27 '13 at 4:37
n00begon
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answered...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
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4 Answers
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Can angularjs routes have optional parameter values?
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4 Answers
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getViewTypeCount and getItemViewType methods of ArrayAdapter
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edited Mar 15 '11 at 15:42
answered Mar 14 '11 at 15:56
M...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...well known value").
Note: Git 2.25.1 (Feb. 2020) proposes in commit 9c8a294:
empty_tree=$(git mktree </dev/null)
# Windows:
git mktree <NUL
And adds:
As a historical note, the function now known as repo_read_object_file() was taught the empty tree in 346245a1bb ("hard-code the empty tr...
Avoid line break between html elements
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146
There are several ways to prevent line breaks in content. Using &nbsp; is one way, and work...
Curly braces in string in PHP
...yntax
echo "This works: {$arr['key']}";
// Works
echo "This works: {$arr[4][3]}";
// This is wrong for the same reason as $foo[bar] is wrong outside a string.
// In other words, it will still work, but only because PHP first looks for a
// constant named foo; an error of level E_NOTICE (undefine...
Optional query string parameters in ASP.NET Web API
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This issue has been fixed in the regular release of MVC4.
Now you can do:
public string GetFindBooks(string author="", string title="", string isbn="", string somethingelse="", DateTime? date= null)
{
// ...
}
and everything will work out of the box.
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