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Behaviour of increment and decrement operators in Python
...erator is the identity operator, which does nothing. (Clarification: the + and - unary operators only work on numbers, but I presume that you wouldn't expect a hypothetical ++ operator to work on strings.)
++count
Parses as
+(+count)
Which translates to
count
You have to use the slightly lo...
What is the difference between mutex and critical section?
... between the two of them. On my system for 1,000,000 uncontended acquires and releases, a mutex takes over one second. A critical section takes ~50 ms for 1,000,000 acquires.
Here's the test code, I ran this and got similar results if mutex is first or second, so we aren't seeing any other effect...
Using ConfigurationManager to load config from an arbitrary location
...omponent that will be used in a website that contains a mix of classic ASP and ASP.NET pages, and need a good way to manage its configuration settings.
...
How to install node.js as windows service?
...ecutable. How can I run that executable as windows service?
I cannot use standard node.js installer, since I need to run multiple version of node.js concurrently.
...
Get the current year in JavaScript
...
Create a new Date() object and call getFullYear():
new Date().getFullYear()
// returns the current year
Hijacking the accepted answer to provide some basic example context like a footer that always shows the current year:
<footer>
&...
Selenium c# Webdriver: Wait Until Element is Present
...
I used the approach provided and found the method was deprecated as pointed out by Samuel. Checking for the existence of an item now waits up to the specified time.
– Jim Scott
Jun 1 '17 at 0:47
...
Traverse all the Nodes of a JSON Object Tree with JavaScript
...3],
subo: {
foo2:"bar2"
}
};
//called with every property and its value
function process(key,value) {
console.log(key + " : "+value);
}
function traverse(o,func) {
for (var i in o) {
func.apply(this,[i,o[i]]);
if (o[i] !== null && typeof(o[i])=="ob...
What is the difference between const_iterator and non-const iterator in the C++ STL?
What is the difference between a const_iterator and an iterator and where would you use one over the other?
7 Answers
...
Add characters to a string in Javascript
... might be to get the keys from the object instead of iterating (for...in), and join on those: var text = ""; text += Object.keys(list).join('')
– Blazes
Feb 24 at 17:32
...
Where do “pure virtual function call” crashes come from?
...e general case can't catch it since the flow from the ctor can go anywhere and anywhere can call the pure virtual function. This is Halting problem 101.
– shoosh
Sep 19 '08 at 4:20
...