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Regular expression that matches valid IPv6 addresses
...Pv6 addresses (section 2.2 of rfc5952)
link-local IPv6 addresses with zone index (section 11 of rfc4007)
IPv4-Embedded IPv6 Address (section 2 of rfc6052)
IPv4-mapped IPv6 addresses (section 2.1 of rfc2765)
IPv4-translated addresses (section 2.1 of rfc2765)
IPv6 Regular Expression:
(([0-9a-fA-F]...
How to display hidden characters by default (ZERO WIDTH SPACE ie. ​)
...ing problems with parsing config file of my app... I discovered it accidentally in vi.
2 Answers
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What is the difference between an ordered and a sorted collection?
... concepts are similar.
List is an ordered collection: each element has an index, which forms an ordering of the elements, but not usually related to any property of the elements themselves.
SortedMap and SortedSet are sorted collections, which means that iteration through the collection will happe...
Linux bash: Multiple variable assignment
... writing the answer bash supporting this syntax was less common (as in installed by default), though I'm not 100% sure.
– Michael Krelin - hacker
Oct 21 '15 at 19:30
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Version vs build in Xcode
...s to match your settings. PreferenceSpecifiers:2 means look at the item at index 2 under the PreferenceSpecifiers array in your plist file, so for a 0-based index, that's the 3rd preference setting in the array.
productVersion=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" "$INFOPL...
How to remove/ignore :hover css style on touch devices
I want to ignore all :hover CSS declarations if a user visits our website via touch device. Because the :hover CSS does not make sense, and it can even be disturbing if a tablet triggers it on click/tap because then it might stick until the element loses focus. To be honest, I don't know why tou...
Reading an Excel file in python using pandas
... = pd.io.parsers.ExcelFile.parse(xl, "Sheet1")
>>> parsed.columns
Index([u'Tid', u'dummy1', u'dummy2', u'dummy3', u'dummy4', u'dummy5', u'dummy6', u'dummy7', u'dummy8', u'dummy9'], dtype=object)
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Delete all records in a table of MYSQL in phpMyAdmin
...Name' will fail on a table with key constraint defined. It will also not reindex the table AUTO_INCREMENT value. Instead, Delete all table entries and reset indexing back to 1 using this sql syntax:
DELETE FROM tableName;
ALTER TABLE tableName AUTO_INCREMENT = 1
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Posting a File and Associated Data to a RESTful WebService preferably as JSON
...as JSON. Part of this application requires the client to upload a file (usually an image) as well as information about the image.
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Download a working local copy of a webpage [closed]
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I tried this, but somehow internal links such as index.html#link-to-element-on-same-page stopped working.
– rhand
Aug 31 '13 at 2:50
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