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Regex lookahead, lookbehind and atomic groups
...r regex following them (if any), will start at the same cursor position.
Read regular-expression.info for more details.
Positive lookahead:
Syntax:
(?=REGEX_1)REGEX_2
Match only if REGEX_1 matches; after matching REGEX_1, the match is discarded and searching for REGEX_2 starts at the same...
.NET XML serialization gotchas? [closed]
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You can't serialize read-only properties. You must have a getter and a setter, even if you never intend to use deserialization to turn XML into an object.
For the same reason, you can't serialize properties that return interfaces: the deseriali...
Check if a value exists in pandas dataframe index
...t the most efficient way to solve the problem, but I (1) like the way this reads and (2) you can easily subset where df1 index exists in df2:
df3 = df1[df1.index.isin(df2.index)]
or where df1 index does not exist in df2...
df3 = df1[~df1.index.isin(df2.index)]
...
Converting Storyboard from iPhone to iPad
...
From reading many threads on stackoverflow i discovered the solution is-
1.Duplicate your iPhone-Storyboard and rename it MainStoryboard_iPad.storyboard
2.right click on the storyboard -> “open as” -> “Source Code”...
How do I copy a hash in Ruby?
...
Adding a more explicit comment here for those who aren't reading other answers that this is does a shallow copy.
– grumpasaurus
Nov 17 '12 at 16:00
...
Get first n characters of a string
... applies: http://codeigniter.com/user_guide/helpers/text_helper.html
(just read the word_limiter and character_limiter sections).
Here's two functions from it relevant to your question:
if ( ! function_exists('word_limiter'))
{
function word_limiter($str, $limit = 100, $end_char = '…'...
Error installing libv8: ERROR: Failed to build gem native extension
...therubyracer,
you may need to use libv8, even if you have V8 installed already. If
you wish to use your own V8 installation, rather than have it built
for you, use the --with-system-v8 option.
For more you can go through the documentation of libv8 on github
...
What are the main disadvantages of Java Server Faces 2.0?
...ement ID with colon ":" in CSS selectors? However, if you're not a purist, read also By default, JSF generates unusable ids, which are incompatible with css part of web standards.
Also, JSF 1.x didn't ship with Ajax facilities out of the box. Not really a technical disadvantage, but due to the Web ...
Live-stream video from one android phone to another over WiFi
...ptor. Implementing MediaDataSource would allow you to do your own network reading and buffering, without writing to a temp file.
– Alex I
Feb 15 '17 at 10:15
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How do I convert an HttpRequestBase into an HttpRequest object?
... will help somebody, then here you go!
(Edit: I see that Kevin Hakanson already gave this answer...so hopefully my response will help those people who just read answers and not comments.) :)
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