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How does the socket API accept() function work?
...d UDP/IP communications (that is, networking code as we know it). However, one of its core functions, accept() is a bit magical.
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How to reset (clear) form through JavaScript?
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form.reset() is a DOM element method (not one on the jQuery object), so you need:
$("#client.frm")[0].reset();
//faster version:
$("#client")[0].reset();
Or without jQuery:
document.getElementById("client").reset();
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Converting HTML string into DOM elements? [duplicate]
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Why not use insertAdjacentHTML
for example:
// <div id="one">one</div>
var d1 = document.getElementById('one');
d1.insertAdjacentHTML('afterend', '<div id="two">two</div>');
// At this point, the new structure is:
// <div id="one">one</div><d...
Why should I use Deque over Stack?
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For one thing, it's more sensible in terms of inheritance. The fact that Stack extends Vector is really strange, in my view. Early in Java, inheritance was overused IMO - Properties being another example.
For me, the crucial wor...
mmap() vs. reading blocks
...e.
Memory maps allow you to keep using pages from the cache until you are done. This means that if you use a file heavily for a long period of time, then close it and reopen it, the pages will still be cached. With read, your file may have been flushed from the cache ages ago. This does not apply...
How can I remove a trailing newline?
...trip() method strips all kinds of trailing whitespace by default, not just one newline as Perl does with chomp.
>>> 'test string \n \r\n\n\r \n\n'.rstrip()
'test string'
To strip only newlines:
>>> 'test string \n \r\n\n\r \n\n'.rstrip('\n')
'test string \n \r\n\n\r '
There a...
Difference between Mock / Stub / Spy in Spock test framework
...nfo see Martin Fowler's website.
A mock is a dummy class replacing a real one, returning something like null or 0 for each method call. You use a mock if you need a dummy instance of a complex class which would otherwise use external resources like network connections, files or databases or maybe u...
What is the purpose of the var keyword and when should I use it (or omit it)?
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It's like shooting oneself with a railgun... Forget to put a 'var' before one's variable, and end up modifying a variable somewhere in the scope chain... Try convincing a Java/C/Python/etc. developer that JavaScript is worthwhile. Ha! C/C++ pit...
Singletons vs. Application Context in Android?
...ffects (which may suddenly surface when moving calls to getInstance() from one scope to another). Visibility has been mentioned as another problem, and since singletons imply "global" (= random) access to shared state, subtle bugs may arise when not properly synchronized in concurrent applications.
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Is it not possible to stringify an Error using JSON.stringify?
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In case anyone pays attention to their linker errors and naming conflicts: if using the replacer option, you should choose a different parameter name for key in function replaceErrors(key, value) to avoid naming conflict with .forEach(f...