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How to access the correct `this` inside a callback?
... that adds meaning, or some preceding and following information that gives extra meaning. The term "context" is used in ECMAScript to refer to execution context, which is all the parameters, scope, and this within the scope of some executing code.
This is shown in ECMA-262 section 10.4.2:
Set the T...
Read Post Data submitted to ASP.Net Form
...d process your logic accordingly:
NameValueCollection nvc = Request.Form;
string userName, password;
if (!string.IsNullOrEmpty(nvc["txtUserName"]))
{
userName = nvc["txtUserName"];
}
if (!string.IsNullOrEmpty(nvc["txtPassword"]))
{
password = nvc["txtPassword"];
}
//Process login
CheckLogin(u...
What is the difference between compare() and compareTo()?
...sses that have a natural ordering implement Comparable<T> - Example: String, wrapper classes, BigInteger
compare(a, b):
Comparator interface : Compares values of two objects. This is implemented as part of the Comparator<T> interface, and the typical use is to define one or more small u...
enum - getting value of enum on string conversion
...d a __str__ method to your enum, if all you wanted was to provide a custom string representation:
class D(Enum):
def __str__(self):
return str(self.value)
x = 1
y = 2
Demo:
>>> from enum import Enum
>>> class D(Enum):
... def __str__(self):
... ...
Creating PHP class instance with a string
... two classes, class ClassOne { } and class ClassTwo {} . I am getting a string which can be either "One" or "Two" .
4...
How do you concatenate Lists in C#?
... Form1()
{
InitializeComponent();
List<string> FirstList = new List<string>();
FirstList.Add("1234");
FirstList.Add("4567");
// In my code, I know I would not have this here but I put it in as a demonstration that it w...
What does Docker add to lxc-tools (the userspace LXC tools)?
...based on LXC, I am very puzzled about my results.
– gextra
Nov 25 '13 at 14:40
7
It appears to me...
How update the _id of one MongoDB Document?
...
Using just ObjectId() without the string as parameter will generate a new unique one.
– Erik
Apr 30 '15 at 12:58
1
...
What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
...ng symlinks (on unixes).
Also note the following example with nio.Paths:
String canonical_path_string = "C:\\Windows\\System32\\";
String absolute_path_string = "C:\\Windows\\System32\\drivers\\..\\";
System.out.println(Paths.get(canonical_path_string).getParent());
System.out.println(Paths.get(a...
Inserting HTML elements with JavaScript
...The very purpose of this question is to be able to directly insert HTML as strings instead of playing around with functions to construct it, attrib by attrib, node by node, element by element.
– TheFlash
May 2 '09 at 14:11
...