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Java; String replace (using regular expressions)?
As part of a project for school, I need to replace a string from the form:
12 Answers
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ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
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From the Java 11 BigDecimal docs:
When a MathContext object is supplied with a precision setting of 0 (for example, MathContext.UNLIMITED), arithmetic operations are exact, as are the arithmetic methods which take no MathCon...
Iterate keys in a C++ map
...is a pair of key,val. IF you need only keys, you can ignore the value part from the pair.
for(std::map<Key,Val>::iterator iter = myMap.begin(); iter != myMap.end(); ++iter)
{
Key k = iter->first;
//ignore value
//Value v = iter->second;
}
EDIT::
In case you want to expose only the ke...
Convert special characters to HTML in Javascript
... escaping HTML is also used by the Prototype JS library though differently from the simplistic sample I have given.
Note: You will still need to escape quotes (double and single) yourself. You can use any of the methods outlined by others here.
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Inherit docstrings in Python class inheritance
... Bar.foo.__doc__ == Bar().foo.__doc__ == Foo.foo.__doc__ == "Frobber"
"""
from functools import wraps
class DocInherit(object):
"""
Docstring inheriting method descriptor
The class itself is also used as a decorator
"""
def __init__(self, mthd):
self.mthd = mthd
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Calling async method synchronously
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This snippet will not compile. The return type from Task.Run is Task. See this MSDN blog for full explanation.
– Appetere
Aug 27 '15 at 12:16
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Folder structure for a Node.js project
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+1 Coming from ASP.NET MVC, calling the "routes" folder "controllers" makes much more sense to me.
– adam0101
May 16 '14 at 22:26
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PHP how to get local IP of system
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From CLI
PHP < 5.3.0
$localIP = getHostByName(php_uname('n'));
PHP >= 5.3.0
$localIP = getHostByName(getHostName());
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Convert HTML + CSS to PDF [closed]
...e IMO. Boostrap conversion off an existing renderer instead of writing one from scratch - not a trivial task. Furthermore, Webkit is written in C++ and therefore much faster and much less of a resource hog than PHP based implementation.
– Koobz
Feb 15 '10 at 12...
Why use a ReentrantLock if one can use synchronized(this)?
...ible to represent via a single monitor in a synchronized construct.
Aside from that, ReentrantLock supports lock polling and interruptible lock waits that support time-out. ReentrantLock also has support for configurable fairness policy, allowing more flexible thread scheduling.
The constructor fo...