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Regex to match string containing two names in any order
...actorially. For 3 names there would be 6 "or"s, 4 names would be 24 "or"s, etc.
– WileCau
Oct 24 '18 at 0:46
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Is there a way to instantiate a class by name in Java?
...lass.forName("com.foo.MyClass");
Constructor<?> constructor = clazz.getConstructor(String.class, Integer.class);
Object instance = constructor.newInstance("stringparam", 42);
Both methods are known as reflection. You will typically have to catch the various exceptions which can occur, includ...
Load image from url
...eres so many out there. My favorite one is Universal Image loader, Picasso etc.
– AmeyaB
Mar 28 '16 at 5:17
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Replace whitespaces with tabs in linux
...an up the output of say, unzip -l , for further processing with grep, cut, etc.
e.g.,
unzip -l some-jars-and-textfiles.zip | tr [:blank:] \\t | cut -f 5 | grep jar
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CSS Background Opacity [duplicate]
...e directly. Editing your background image to be a semi-transparent png/gif/etc.. is even more correct. Opacity takes a bit more juice to render.
– Patrick Borkowicz
Dec 5 '14 at 19:11
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Unit Testing bash scripts
... of side effects and utilize system resources such as filesystem, network, etc. Ideally, unit tests are side-effect free and do not depend on system resources.
– jayhendren
Nov 3 '14 at 17:21
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Get the first element of an array
...$array));
In O(1):
array_pop(array_reverse($array));
Other use cases, etc...
If modifying (in the sense of resetting array pointers) of $array is not a problem, you might use:
reset($array);
This should be theoretically more efficient, if a array "copy" is needed:
array_shift(array_slice($...
Get JSON object from URL
...y answer the question directly (in this case there are different key names etc.)
– elliot42
Nov 19 '15 at 23:21
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Does a javascript if statement with multiple conditions test all of them?
... won't throw a compile error if response.authResponse is null or undefined etc because the first condition failed.
Other languages had this problem in the early days and I think it's a standard approach in building compilers now.
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How to pass password to scp?
...sswdfile` scp [...]. This way, the password won't show up in ps` listings, etc. and you can protect the password with file permissions.
– Christopher Schultz
Mar 20 '15 at 15:30
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