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Is there a PHP function that can escape regex patterns before they are applied?
...bla bla";
preg_match($regex, $haystack, $matches);
var_dump($matches);
// array(1) {
// [0]=>
// string(48) " http://stackoverflow.com/questions?sort=newest "
// }
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Show or hide element in React
...th && <MyComponent /> } will render 0, if myComponents empty array(for example)
– Mega Proger
Mar 22 at 12:36
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Rails 4 - passing variable to partial
...s: { account: @account} %>
<%= render @account %>
# @posts is an array of Post instances, so every post record returns 'posts/post' on `to_partial_path`,
# that's why we can replace:
# <%= render partial: "posts/post", collection: @posts %>
<%= render @posts %>
So, you can us...
How to sort a Ruby Hash by number value?
...simpler as: hash.sort_by(&:last) with the same caveat about getting an array of pairs vs. a Hash.
– Gerry Gleason
May 18 '15 at 13:55
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How to use Class in Java?
...uestion , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s.
However, what stumps me is the usage of Class<> .
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How to get position of a certain element in strings vector, to use it as an index in ints vector?
...{
//old_name_ not found
}
vector iterators behave in ways similar to array pointers; most of what you know about pointer arithmetic can be applied to vector iterators as well.
Starting with C++11 you can use std::distance in place of subtraction for both iterators and pointers:
ptrdiff_t pos...
How can I group data with an Angular filter?
... working with AngularJS > 1.1 as Promised are not unwrapped anymore for arrays. See the immigration notes
– Benny Bottema
Sep 3 '14 at 7:25
6
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simple explanation PHP OOP vs Procedural?
...., functions for doing basic string manipulation, functions for processing arrays, functions for file input/output, etc]
OOP is a special way of "chunking" Functions together into a "Class"
A Class is just another level of "chunking" code together so that you can treat it as a unified whole
A Class...
C++ where to initialize static const
...
Only integral values (e.g., static const int ARRAYSIZE) are initialized in header file because they are usually used in class header to define something such as the size of an array. Non-integral values are initialized in implementation file.
...
How can I make a WPF combo box have the width of its widest element in XAML?
... return;
EventHandler[] handler = {null}; // array usage prevents access to modified closure
handler[0] = new EventHandler(delegate
{
if (!AssociatedObject.IsDropDownOpen || AssociatedObject.ItemContainerGenerator.Status != Genera...