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How can I force Powershell to return an array when a call only returns one object?
...ve a Count property. Single objects (scalar) do not have a Count property. Strings have a length property so you might get false results, use the Count property:
if (@($serverIps).Count -le 1)...
By the way, instead of using a wildcard that can also match strings, use the -as operator:
[array]$s...
Mongoose subdocuments vs nested schema
... name: [nestedDov]
Simple Version:
var nestedDoc = new Schema({
name: String
});
var mainDoc = new Schema({
names: [nestedDoc]
});
JSON Example
{
"_id" : ObjectId("57c88bf5818e70007dc72e85"),
"name" : "Corinthia Hotel Budapest",
"stars" : 5,
"description" : "The 5-star Cor...
Is the order of elements in a JSON list preserved?
...unordered collection of zero or more name/value
pairs, where a name is a string and a value is a string, number,
boolean, null, object, or array.
An array is an ordered sequence of zero or more values.
The terms "object" and "array" come from the conventions of
JavaScript.
Some imp...
How to list files in a directory in a C program?
...aybe I can use exec function to run find command but I want file name as a string to send client program. How can I do this?
...
Regular expression to match a dot
... test.this content, then split is not what you need. split will split your string around the test.this. For example:
>>> re.split(r"\b\w+\.\w+@", s)
['blah blah blah ', 'gmail.com blah blah']
You can use re.findall:
>>> re.findall(r'\w+[.]\w+(?=@)', s) # look ahead
['test.t...
How do I decode a URL parameter using C#?
...
string decodedUrl = Uri.UnescapeDataString(url)
or
string decodedUrl = HttpUtility.UrlDecode(url)
Url is not fully decoded with one call. To fully decode you can call one of this methods in a loop:
private static string...
Adding up BigDecimals using Streams
...mport java.util.LinkedList;
public class Demo
{
public static void main(String[] args)
{
LinkedList<Invoice> invoices = new LinkedList<>();
invoices.add(new Invoice("C1", "I-001", BigDecimal.valueOf(.1), BigDecimal.valueOf(10)));
invoices.add(new Invoice("C2", "I-002", B...
Display a view from another controller in ASP.NET MVC
...osed to hardcoding a result. Either way you shouldn't be passing in a path string.
– perustaja
Feb 14 at 22:54
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SQL Server Regular expressions in T-SQL
...t it gives you the basics.
(From Books Online)
Wildcard Meaning
% Any string of zero or more characters.
_ Any single character.
[ ] Any single character within the specified range
(for example, [a-f]) or set (for example, [abcdef]).
[^] Any single character not within the specified ran...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...tener() {
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
// Implementation
}
});
do this:
// Use instance field for listener
// It will not be gc'd as long as this instance is kept referenced
listener = new SharedPreferences.OnSharedPreferenceChangeListener()...