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JavaScript variable number of arguments to function
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This is also nice because if you want, you can build the context argument with code and pass it around before it gets used.
– Nate C-K
Jan 29 '14 at 8:17
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string.Join on a List or other type
...does what you want:
String.Join<T>(String, IEnumerable<T>)
If you can't upgrade, you can achieve the same effect using Select and ToArray.
return string.Join(",", a.Select(x => x.ToString()).ToArray());
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Is there any way to git checkout previous branch?
I sort of want the equivalent of cd - for git. If I am in branch master and I checkout foo , I would love to be able to type something like git checkout - to go back to master , and be able to type it again to return to foo .
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How can I determine if a variable is 'undefined' or 'null'?
How do I determine if variable is undefined or null ?
30 Answers
30
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Where is debug.keystore in Android Studio
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Which Studio are you using? If it is Studio 0.3.2 or above, then I am with you on this one!
– Prachi
Jan 16 '14 at 14:19
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How do I extract the contents of an rpm?
...he cpio arguments are
-i = extract
-d = make directories
-m = preserve modification time
-v = verbose
I found the answer over here: lontar's answer
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How to draw a custom UIView that is just a circle - iPhone app
...easiest way of making a circle, but is not necessarily the most efficient. If performance is vital, drawRect will probably yield better results.
– Benjamin Mayo
Jul 5 '11 at 22:28
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Giving a border to an HTML table row,
...an set border properties on a tr element, but according to the CSS 2.1 specification, such properties have no effect in the separated borders model, which tends to be the default in browsers. Ref.: 17.6.1 The separated borders model. (The initial value of border-collapse is separate according to CSS...
What's the difference between array_merge and array + array?
A fairly simple question. What's the difference between:
9 Answers
9
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How to remove all null elements from a ArrayList or String Array?
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As of 2015, this is the best way (Java 8):
tourists.removeIf(Objects::isNull);
Note: This code will throw java.lang.UnsupportedOperationException for fixed-size lists (such as created with Arrays.asList), including immutable lists.
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