Is it possible to traverse std::stack in C++? No. A stack is a data structure you should use when you are interested in placing elements on top and getting elements from the top. If you want an iterable stack, either use a different data structure for a stack role (std::vector?) or write one yourself.
This should give you the enclosing tr of the element, even if it isn’t the element’s direct parent, then that row’s next row. if you use parent on an element that is inside a td, it will give you the column, not the row. Supplying a filter to the parent() method will simply filter out … Read more
Use the constructor: HashSet<type> set2 = new HashSet<type>(set1); Personally I wish LINQ to Objects had a ToHashSet extension method as it does for List and Dictionary. It’s easy to create your own of course: public static HashSet<T> ToHashSet<T>(this IEnumerable<T> source) { if (source == null) { throw new ArgumentNullException(“source”); } return new HashSet<T>(source); } (With … Read more
$(“li.active”).next(); and $(“li.active”).prev();
Use reverse_iterator instead of iterator. Use rbegin() & rend() instead of begin() & end(). Another possibility, if you like using the BOOST_FOREACH macro is to use the BOOST_REVERSE_FOREACH macro introduced in Boost 1.36.0.
Set followlinks to True. This is the fourth argument to the os.walk method, reproduced below: os.walk(top[, topdown=True[, onerror=None[, followlinks=False]]]) This option was added in Python 2.6. EDIT 1 Be careful when using followlinks=True. According to the documentation: Note: Be aware that setting followlinks to True can lead to infinite recursion if a link points to … Read more
Here’s something you can use. Just replace the printfs with what you actually want to do. #include <stdio.h> int main() { int x[3][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9}; int n = 3; for (int slice = 0; slice < 2 * n – 1; ++slice) { printf(“Slice %d: “, slice); … Read more
The problem is that your using the next traversing function rather than nextAll $(“button[disabled]”).nextAll(“.error”).text(“this button is disabled”); When you use next its just looking at the “next” element which is <span>no overwrite</span> Next all looks at all siblings that are next
Yes, you can traverse a Standard Library map. This is the basic method used to traverse a map, and serves as guidance to traverse any Standard Library collection: C++03/C++11: #include <cstdlib> #include <map> #include <string> using namespace std; int main() { typedef map<int,string> MyMap; MyMap my_map; // … magic for( MyMap::const_iterator it = my_map.begin(); it … Read more
I made a research on a small cache of web pages in 1000 dirs. The task was to count a total number of files in dirs. The output is: os.listdir: 0.7268s, 1326786 files found os.walk: 3.6592s, 1326787 files found glob.glob: 2.0133s, 1326786 files found As you see, os.listdir is quickest of three. And glog.glob is … Read more