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How to clear Facebook Sharer cache?
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Just click on the Fetch new scrape information button
– IvanRF
Feb 13 '16 at 21:23
2
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Skip download if files exist in wget?
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The -nc, --no-clobber option isn't the best solution as newer files will not be downloaded. One should use -N instead which will download and overwrite the file only if the server has a newer version, so the correct answer is:
wget -N http://www.example.com/images/misc/pic.png
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AsyncTask and error handling on Android
...roup/android-developers/browse_thread/thread/…)
– OneWorld
Oct 12 '10 at 15:06
1
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How to zip a whole folder using PHP
...rootPath = realpath('folder-to-zip');
// Initialize archive object
$zip = new ZipArchive();
$zip->open('file.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);
// Create recursive directory iterator
/** @var SplFileInfo[] $files */
$files = new RecursiveIteratorIterator(
new RecursiveDirect...
How to get Enum Value from index in Java?
... "making a static copy": public static final ArrayList<Months> ALL = new ArrayList<Month>() {{ for (Months m : Months.values()) add(m); }};, then you can access the elements with Months i = ALL.get(index)
– muelleth
Aug 31 '16 at 8:11
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When is “i += x” different from “i = i + x” in Python?
...e (returning the object which was mutated) whereas __add__ should return a new instance of something. For immutable objects, both methods return a new instance, but __iadd__ will put the new instance in the current namespace with the same name that the old instance had. This is why
i = 1
i += 1
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PHP function to generate v4 UUID
...ound and I've been trying to piece together a function that generates a valid v4 UUID in PHP. This is the closest I've been able to come. My knowledge in hex, decimal, binary, PHP's bitwise operators and the like is nearly non existant. This function generates a valid v4 UUID up until one area. A v4...
Remove Fragment Page from ViewPager in Android
...rride the getItemId(int position) method of FragmentPagerAdapter to give a new unique ID whenever there has been a change in the expected position of a Fragment.
Source Code:
private class MyPagerAdapter extends FragmentPagerAdapter {
private TextProvider mProvider;
private long baseId = ...
What's the simplest way to print a Java array?
...n the exact way you're asking.
Examples:
Simple Array:
String[] array = new String[] {"John", "Mary", "Bob"};
System.out.println(Arrays.toString(array));
Output:
[John, Mary, Bob]
Nested Array:
String[][] deepArray = new String[][] {{"John", "Mary"}, {"Alice", "Bob"}};
System.out.p...
Initialize a byte array to a certain value, other than the default null? [duplicate]
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For small arrays use array initialisation syntax:
var sevenItems = new byte[] { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
For larger arrays use a standard for loop. This is the most readable and efficient way to do it:
var sevenThousandItems = new byte[7000];
for (int i = 0; i < seve...