大约有 47,000 项符合查询结果（耗时：0.0489秒） [XML]
How to select last two characters of a string
...
EDIT: 2020: use string.slice(-2) as others say - see below.
now 2016 just string.substr(-2) should do the trick (not substring(!))
taken from MDN
Syntax
str.substr(start[, length])
Parameters
start
Location at which to begin extracting characters. If a negati...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...dated with warnings about this behavior. So, oddball behavior remains. But now it's documented.
share
|
improve this answer
|
follow
|
...
bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...all the packages (while the gems are the packages themselves). Rubygems is now part of Ruby.
Bundler is what makes managing gems bearable. Based on your Gemfile, a simple call to bundler using bundle install will download and install all the required gems. Using standard gem command, you would have...
how to check and set max_allowed_packet mysql variable [duplicate]
...
@YusufIbrahim Short answer: I don't know. But a quick scan of this article suggests that it should be possible.
– morphatic
Nov 29 '19 at 18:54
...
What's the deal with a leading underscore in PHP class methods?
...the most authoritative source for these kinds of conventions for PHP right now would be the PSR-2: Coding Style Guide because the Zend Framework is part of PSR:
Property names SHOULD NOT be prefixed with a single underscore to indicate protected or private visibility.
...
What is the difference between bottom-up and top-down?
...tree may be infinitely large. Furthermore, in some problems you might not know what the full tree looks like ahead of time. Thus, you might need a strategy/algorithm to decide which subproblems to reveal.)
Memoization, Tabulation
There are at least two main techniques of dynamic programming whic...
Android Bitmap to Base64 String
...Stream is = new Base64InputStream( new FileInputStream(yourFileHere) );
//Now that we have the InputStream, we can read it and put it into the String
final StringWriter writer = new StringWriter();
IOUtils.copy(is , writer, encoding);
final String yourBase64String = writer.toString();
As you can ...
Get the name of the currently executing method
...
Great solution Mark The best solution at now. Great job
– jonathanccalixto
Sep 19 '16 at 8:13
...
Which C++ idioms are deprecated in C++11?
...
The preventable mistakes can however now be caught by using reference qualifiers for functions. Such as in the above case defining A& operator=(A o)& instead of A& operator=(A o). These prevent the silly mistakes and make classes behave more like bas...
How to dynamically change a web page's title?
... So it means this answer is quite obsolete. StackOverflow should now add "Obsolete" feature for answers :D
– Allen Linatoc
Mar 14 '16 at 7:42
| ...