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Understanding prototypal inheritance in JavaScript
...r.prototype.constructor === Car, but it is equally true for Array, Object, String, ...etc.
But if you reassign a different object to prototype, that invariance is broken. Usually this is not a problem (as you have noticed), but it is better to reinstate it, because it answers the question "Which c...
When a 'blur' event occurs, how can I find out which element focus went *to*?
...work for focus changes caused by tabbing through fields with the keyboard, and does not work at all in Chrome or Safari. The big problem with using activeElement (except in IE) is that it is not consistently updated until after the blur event has been processed, and may have no valid value at all du...
How to set a Django model field's default value to a function call / callable (e.g., a date relative
... new_profile.save()
def create_auth_token(self):
import random, string
auth = self.user.username[:4] # get first 4 characters in user name
self.auth_token = auth + ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits + string.ascii_lowercase) for _ in range...
How to inherit constructors?
...t annoying one for me is custom exceptions - Sub New(), Sub New(Message As String), Sub New(Message As String, InnerEx as Exception), Sub New(Info As Serialization.SerializationInfo, Context As Serialization.StreamingContext)... Yawn `
– Basic
May 20 '13 at 19:...
List OrderBy Alphabetical Order
...ean an in-place sort (i.e. the list is updated):
people.Sort((x, y) => string.Compare(x.LastName, y.LastName));
If you mean a new list:
var newList = people.OrderBy(x=>x.LastName).ToList(); // ToList optional
shar...
JavaScript hide/show element
How could I hide the 'Edit'-link after I press it? and also can I hide the "lorem ipsum" text when I press edit?
11 Answers...
RESTfully design /login or /register resources?
I was designing a web app and then stopped to think about how my api should be designed as a RESTful web service. For now, most of my URI's are generic and might apply to various web apps:
...
What are CN, OU, DC in an LDAP search?
...
What are CN, OU, DC?
From RFC2253 (UTF-8 String Representation of Distinguished Names):
String X.500 AttributeType
------------------------------
CN commonName
L localityName
ST stateOrProvinceName
O organizationName
OU organizationalUn...
Tool to read and display Java .class versions
...version.
import java.io.*;
public class Demo {
public static void main(String[] args) throws IOException {
ClassLoader loader = Demo.class.getClassLoader();
try (InputStream in = loader.getResourceAsStream("Demo.class");
DataInputStream data = new DataInputStream(in)) {
if ...
Adding custom radio buttons in android
I have a simple android radio button below
10 Answers
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