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How should I read a file line-by-line in Python?
... memory.
In such an implementation, you might get a "too many files open" error from the OS if your code opens files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by...
What is an example of the simplest possible Socket.io example?
... addMessage(data.time);
});
socket.on('error', console.error.bind(console));
socket.on('message', console.log.bind(console));
function addMessage(message) {
var text = document.createTextNode(message),
e...
What are dictionary view objects?
...iew, how the iterator should behave is not well defined, which can lead to errors.
One advantage is that looking at, say, the keys uses only a small and fixed amount of memory and requires a small and fixed amount of processor time, as there is no creation of a list of keys (Python 2, on the other...
How do I expire a PHP session after 30 minutes?
...file_exists($path)) {
if(!mkdir($path, 600)) {
trigger_error("Failed to create session save path directory '$path'. Check permissions.", E_USER_ERROR);
}
}
ini_set("session.save_path", $path);
// Set the chance to trigger the garbage collection.
ini_set("...
Unit Test? Integration Test? Regression Test? Acceptance Test?
... to make sure that integrating these units together has not introduced any errors.
Regression testing - after integrating (and maybe fixing) you should run your unit tests again. This is regression testing to ensure that further changes have not broken any units that were already tested. The unit...
Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'
...rally considered
outdated.)
I would say NO, for several reasons:
Poor error handling
Error conditions should be reported with exceptions, not with operator void*.
The "zombie object" anti-pattern is what causes bugs like these.
Poor separation between formatting and I/O
This makes stream ob...
What exactly is OAuth (Open Authorization)?
...n LinkedIn. Adding all of your many, many friends manually is tiresome and error-prone. You might get fed up half-way or insert typos in their e-mail address for invitation. So you might be tempted not to create an account after all.
Facing this situation, LinkedIn has the Good Idea(TM) to write a ...
Oracle PL/SQL - How to create a simple array variable?
...you try to extend a varray(3) 4 times - you get a "subscript out of limit" error.
– Tony Andrews
Jun 15 '16 at 16:29
2
...
string sanitizer for filename
...er in an unsafe HTML context because this absolutely legal filename:
' onerror= 'alert(document.cookie).jpg
becomes an XSS hole:
<img src='<? echo $image ?>' />
// output:
<img src=' ' onerror= 'alert(document.cookie)' />
Because of that, the popular CMS software Wordpress r...
What is the difference between C, C99, ANSI C and GNU C?
...ograms according to the C standard, you should type gcc -std=c99 -pedantic-errors. Replace c99 with c11 if your GCC version supports it.
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