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Select multiple records based on list of Id's with linq
... .Contains took 2 minutes and 19 seconds! I used pure IEnumerable for this testing to prove my statement. If you use List instead of IEnumerable, .Where and .Contains will be faster. Anyway the difference is significant. The fastest .Where .Contains is with Set<>. All it depends on complexity ...
Should flux stores, or actions (or both) touch external services?
...ronous. This makes your store logic much easier to follow and very easy to test—just instantiate a store with some given state, send it an action, and check to see if the state changed as expected. Furthermore, one of the core concepts in flux is to prevent cascading dispatches and to prevent mult...
What's the difference between IComparable & IEquatable interfaces?
...
IEquatable tests whether two objects are equal.
IComparable imposes a total ordering on the objects being compared.
For example, IEquatable would tell you that 5 is not equal to 7. IComparable would tell you that 5 comes before 7.
...
Getting the IP address of the current machine using Java
...to-point IPv4 address.
In fact, the InetAddress API provides methods for testing for loopback, link local, site local, multicast and broadcast addresses. You can use these to sort out which of the IP addresses you get back is most appropriate.
...
Read-only and non-computed variable properties in Swift
...r in Swift (cut&paste of your code, plus some modifications, I did not test it):
class Clock : NSObject {
var _hours: UInt = 0
var _minutes: UInt = 0
var _seconds: UInt = 0
var hours: UInt {
get {
return _hours
}
}
var minutes: UInt {
get {
r...
What is the difference between Class and Klass in ruby?
...n this results in an error, since you can't use class as a variable name.
test.rb:1: syntax error, unexpected kCLASS, expecting ')'
def show_methods(class)
^
test.rb:2: syntax error, unexpected ')'
puts Object.const_get(class).methods.inspect
To fix it, we'll u...
What is ViewModel in MVC?
...many reasons to use a view model is that view models provide a way to unit test certain presentation tasks such as handling user input, validating data, retrieving data for display, etc.
Here is a comparison of Entity models (a.ka. DTOs a.ka. models), Presentation Models, and View Models.
Data Trans...
Multiple GitHub Accounts & SSH Config
...your entries aren't there then run:
ssh-add ~/.ssh/id_rsa_work
Step 4: test
To test you've done this all correctly, I suggest the following quick check:
$ ssh -T git@github.com
Hi stefano! You've successfully authenticated, but GitHub does not provide shell access.
$ ssh -T git@work.github.co...
Difference between RegisterStartupScript and RegisterClientScriptBlock?
...rtupScript method:
Page.ClientScript.RegisterStartupScript(Me.GetType(), "Testing", _
"document.forms[0]['TextBox1'].focus();", True)
This works well because the textbox on the page is generated and placed on the page by the time the browser gets down to the bottom of the page and gets to this l...
Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
...e in the "Roslyn" version of the semantic analyzer. I've informed the C# 5 test team, and hopefully we can get this investigated and resolved before the final release. (As always, no promises.)
A correct analysis follows. The candidates are:
0: C(params string[]) in its normal form
1: C(params str...