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How do I remove a key from a JavaScript object? [duplicate]
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// Example 3
delete thisIsObject.Cow;
If you're interested, read Understanding Delete for an in-depth explanation.
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Sorting a set of values [closed]
...t, not a set. That's because the whole point of a set, both in mathematics and in almost every programming language,* is that it's not ordered: the sets {1, 2} and {2, 1} are the same set.
You probably don't really want to sort those elements as strings, but as numbers (so 4.918560000 will come b...
Why does “,,,” == Array(4) in Javascript?
Boot up your interpreter/console and try the comparison
6 Answers
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What does rake db:test:prepare actually do?
I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation?
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Converting array to list in Java
...ot create a List<Integer[]> it creates a List<Integer> object. And if you want to be type safe you write: Arrays.<Integer>asList(spam);
– user1712376
May 23 '14 at 20:24
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echo that outputs to stderr
Is there a standard Bash tool that acts like echo but outputs to stderr rather than stdout?
15 Answers
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Check, using jQuery, if an element is 'display:none' or block on click
I want to check and sort elements that are hidden. Is it possible to find all elements with attribute display and value none ?
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Could not locate Gemfile
...no Ruby developer but I have an application on my server using Ruby, Gems, and Bundler. I am trying to install another Ruby on under a different user account but on the same VPS. When I go to run
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T-SQL CASE Clause: How to specify WHEN NULL
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Handling it with something like this may be of use, or something of the like: COALESCE(last_name, '') The case statement, while concise, is imho less maintainable than COALESCE in large queries. In the end, you have the...
Git: Ignore tracked files
...I don't want to untrack them, I just don't want them to appear as modified and I don't want them to be staged when I git add.
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