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Distinct not working with LINQ to Objects
... should work.
public class Author : IEquatable<Author>
{
public string FirstName { get; set; }
public string LastName { get; set; }
public bool Equals(Author other)
{
if (FirstName == other.FirstName && LastName == other.LastName)
return true;
...
Determine whether an array contains a value [duplicate]
...has more upvotes than the answer. But good stuff - I've used indexOf() for strings, but I didn't know you could use it for arrays in general.
– doubleDown
Feb 4 '16 at 12:02
...
Which timestamp type should I choose in a PostgreSQL database?
... (
my_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
CHECK(EXTRACT(TIMEZONE FROM my_timestamp) = '0')
);
test=> SET timezone = 'America/Los_Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check constraint "my...
How to declare a global variable in php?
... and integer-initial values as global scope static variables. Any constant strings are defined as such.
define("myconstant", "value");
class globalVars {
static $a = false;
static $b = 0;
static $c = array('first' => 2, 'second' => 5);
}
function test($num) {
if (!glo...
Enum type constraints in C# [duplicate]
...t;Temp> where Temp : class {
public static TEnum Parse<TEnum>(string name) where TEnum : struct, Temp {
return (TEnum)Enum.Parse(typeof(TEnum), name);
}
}
public abstract class Enums : Enums<Enum> { }
Enums.Parse<DateTimeKind>("Local")
If you want to, you can...
Exclude .svn directories from grep [duplicate]
...ort GREP_OPTIONS='--exclude-dir=".svn"'
PS: thanks to Adrinan, there are extra quotes in my version:
export GREP_OPTIONS='--exclude-dir=.svn'
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improve this answer
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...
Can PostgreSQL index array columns?
... @IamIC does that mean I should not bother indexing an array of strings? And I should only index integer arrays?
– ryan2johnson9
Feb 10 '19 at 20:41
...
Can I incorporate both SignalR and a RESTful API?
...Controller : HubController<ToDoListHub>
{
private static List<string> _items = new List<string>();
public IEnumerable<string> Get()
{
return _items;
}
public void Post([FromBody]string item)
{
_items.Add(item);
// Call add on ...
Set focus on TextBox in WPF from view model
...odel(exampleViewModel.cs):write the following
Messenger.Default.Send<string>("focus", "DoFocus");
now in your View.cs(not the XAML the view.xaml.cs) write the following in the constructor
public MyView()
{
InitializeComponent();
Messenger.Default.Registe...
onchange event on input type=range is not triggering in firefox while dragging
... In other browsers, the "change" event is effectively silenced (to prevent extra and sometimes not-readily-apparent events from firing). In addition, the "input" event fires its listener only when the range/slider's value changes. For some browsers (e.g. Firefox) this occurs because the listener is ...