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ReactJS: Modeling Bi-Directional Infinite Scrolling
...ay of all children. Since we do not render them, it's really cheap to just allocate them and discard them. If 10k allocations is too big, you can instead pass a function that takes a range and return the elements.
<List>
{thousandelements.map(function() { return <Element /> })}
</L...
Confirm deletion in modal / dialog using Twitter Bootstrap?
...we want to have delete confirmation for:
<a href="#" data-href="delete.php?id=23" data-toggle="modal" data-target="#confirm-delete">Delete record #23</a>
<button class="btn btn-default" data-href="/delete.php?id=54" data-toggle="modal" data-target="#confirm-delete">
Delete re...
Is there a 'foreach' function in Python 3?
...
Every occurence of "foreach" I've seen (PHP, C#, ...) does basically the same as pythons "for" statement.
These are more or less equivalent:
// PHP:
foreach ($array as $val) {
print($val);
}
// C#
foreach (String val in array) {
console.writeline(val);
}...
Why should I avoid std::enable_if in function signatures
...enable_if contains a nested template or type definition (hint: look for :: tokens), then the resolution of these nested tempatles or types are usually a non-deduced context. Any substitution failure on such a non-deduced context is an error.
the various conditions in multiple enable_if overloads can...
How to allow to accept only image files?
...ttp://www.w3schools.com/tags/att_input_accept.asp
http://www.w3schools.com/php/php_file_upload.asp
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Assigning out/ref parameters in Moq
...t parameters such as:
public interface IParser
{
bool TryParse(string token, out int value);
}
.. with the following Moq setup:
[TestMethod]
public void ParserTest()
{
Mock<IParser> parserMock = new Mock<IParser>();
int outVal;
parserMock
...
Escaping quotes and double quotes
... were looking for?
The error PowerShell gave me referred to an unexpected token 'sort1', and that's how I determined where to put the backticks.
The @' ... '@ syntax is called a "here string" and will return exactly what is entered. You can also use them to populate variables in the following fash...
How do I measure execution time of a command on the Windows command line?
... start=%time%
:: Runs your command
cmd /c %*
set end=%time%
set options="tokens=1-4 delims=:.,"
for /f %options% %%a in ("%start%") do set start_h=%%a&set /a start_m=100%%b %% 100&set /a start_s=100%%c %% 100&set /a start_ms=100%%d %% 100
for /f %options% %%a in ("%end%") do set end_h=...
grep, but only certain file extensions
...es)
'searchterm': What to search
./: Start at current directory.
Source: PHP Revolution: How to Grep files in Linux, but only certain file extensions?
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Exposing database IDs - security risk?
...tifiers is a necessity, however, is in session IDs or other authentication tokens, where the ID itself authenticates a request. These should be generated by a cryptographic RNG.
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