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How to len(generator()) [duplicate]
...lution as it describes what I want to get, and it doesn't give me anything extra that's not required (such as a list of all the elements).
Also listen to delnan's advice: If you're discarding the output of the generator it is very likely that there is a way to calculate the number of elements witho...
Setting the selected value on a Django forms.ChoiceField
...ee_id})
Alternatively the initial argument can be ignored in place of an extra line with:
form.fields['manager'].initial = manager_employee_id
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How can I make my custom objects Parcelable?
...plementation.
public class Student implements Parcelable{
private String id;
private String name;
private String grade;
// Constructor
public Student(String id, String name, String grade){
this.id = id;
this.name = name;
t...
What is the difference between sigaction and signal?
... And that's it. Anything else is not guaranteed to be portable. That's so stringent that most people ignore those rules — but the resulting code is dodgy.
– Jonathan Leffler
Oct 27 '16 at 16:14
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Why is it common to put CSRF prevention tokens in cookies?
...o harm, so this is fine.
@WebFilter(urlPatterns = {"/dataservice/*"})
...
String sessionCSRFToken = req.getSession().getAttribute("CSRFToken") != null ? (String) req.getSession().getAttribute("CSRFToken") : null;
if (sessionCSRFToken == null || req.getHeader("X-CSRF-TOKEN") == null || !req.getHeade...
Is it better to reuse a StringBuilder in a loop?
I've a performance related question regarding use of StringBuilder.
In a very long loop I'm manipulating a StringBuilder and passing it to another method like this:
...
How to initialize a List to a given size (as opposed to capacity)?
...
List<string> L = new List<string> ( new string[10] );
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Do I have to Close() a SQLConnection before it gets disposed?
...
The using keyword will close the connection correctly so the extra call to Close is not required.
From the MSDN article on SQL Server Connection Pooling:
"We strongly recommend that you always
close the connection when you are
finished using it so that the
connection will be...
How to make a in Bootstrap look like a normal link in nav-tabs?
...border: 0px;
box-sizing: none;
background-color: transparent;
}
Extra Styles Edit
Add color: #337ab7; and :hover and :focus to match OOTB (bootstrap3)
.remove_button_css:focus,
.remove_button_css:hover {
color: #23527c;
text-decoration: underline;
}
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How to split a sequence into two pieces by predicate?
...like this (modify if you need to search for ints)
def split(list_in: List[String], search: String): List[List[String]] = {
def split_helper(accum: List[List[String]], list_in2: List[String], search: String): List[List[String]] = {
val (h1, h2) = list_in2.span({x: String => x!= search})
...