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How to get index using LINQ? [duplicate]
...ptyList();
}
void TestGetsFirstItem()
{
// Arrange
var list = new string[] { "a", "b", "c", "d" };
// Act
int index = list.IndexOf(item => item.Equals("a"));
// Assert
if(index != 0)
{
throw new Exception("Index should be 0 but is: " + index);
}
"Te...
Scala equivalent of Java java.lang.Class Object
...:
scala> "foo".getClass
res0: java.lang.Class[_ <: java.lang.String] = class java.lang.String
)
Back in 2009:
It would be useful if Scala were to treat the return from getClass() as a java.lang.Class[T] forSome { val T : C } where C is something like the erasure of the static type of...
How to validate inputs dynamically created using ng-repeat, ng-show (angular)
...ttempted to use the {{$index}} value to name the inputs, but despite the string literals in HTML appearing correct, it is now working.
...
Best way to allow plugins for a PHP application
...te that when using multiple hooks/listeners, you should only return either strings or arrays, not both. I have implemented something similar for Hound CMS - getbutterfly.com/hound.
– Ciprian
Dec 19 '17 at 11:21
...
Android: upgrading DB version and adding new table
...ldVersion, int newVersion) {
switch (oldVersion) {
case 1:
String sql = "ALTER TABLE " + TABLE_SECRET + " ADD COLUMN " + "name_of_column_to_be_added" + " INTEGER";
db.execSQL(sql);
break;
case 2:
String sql = "SOME_QUERY";
db.execSQL(sql);
...
Python pandas Filtering out nan from a data selection of a column of strings
...403%2fpython-pandas-filtering-out-nan-from-a-data-selection-of-a-column-of-strings%23new-answer', 'question_page');
}
);
Post as a guest
Name
...
System.Net.WebException HTTP status code
...t ex.Status to get the WebExceptionStatus.
If you just want a descriptive string to log in case of a failure you can use the null-coalescing operator (??) to get the relevant error:
string status = (ex.Response as HttpWebResponse)?.StatusCode.ToString()
?? ex.Status.ToString();
If the except...
How to append text to a text file in C++?
...n't exist and also adds bit of error checks.
static void appendLineToFile(string filepath, string line)
{
std::ofstream file;
//can't enable exception now because of gcc bug that raises ios_base::failure with useless message
//file.exceptions(file.exceptions() | std::ios::failbit);
...
How to implement a confirmation (yes/no) DialogPreference?
...
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Toast.makeText(MainActivity.this, "Yaay", Toast.LENGTH_SHORT).show();
}})
.setNegativeButton...
How to change the session timeout in PHP?
...{
return true;
}
function read($id)
{
return (string)@file_get_contents("$this->savePath/sess_$id");
}
function write($id, $data)
{
return file_put_contents("$this->savePath/sess_$id", $data) === false ? false : true;
}
function destro...