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Swift: Testing optionals for nil
... nil to move for the next condition. If only nil check is required, remove extra conditions in the following code.
Other than that, if x is not nil, the if closure will be executed and x_val will be available inside. Otherwise the else closure is triggered.
if let x_val = x, x_val > 5 {
//x...
How can I find the number of arguments of a Python function?
...signature(someMethod)
Now, you can either view its parameters quickly by string it:
str(sig) # returns: '(self, arg1, kwarg1=None)'
or you can also get a mapping of attribute names to parameter objects via sig.parameters.
params = sig.parameters
print(params['kwarg1']) # prints: kwarg1=20
...
What is The difference between ListBox and ListView
... The Code Behind section is not valid code as of 2019-04-29 (extra closing brace and UpgradeProperty). Can it be corrected?
– Frederic
Apr 29 '19 at 9:36
2
...
Remove all special characters, punctuation and spaces from string
I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers.
16 A...
How do I map lists of nested objects with Dapper
...ltiplication across locations, I use Distinct() to remove potential dups:
string query = @"SELECT c.*, l.*
FROM Course c
INNER JOIN Location l ON c.LocationId = l.Id";
using (SqlConnection conn = DB.getConnection())
{
conn.Open();
var courseDictionary = new Dictionary<Guid, Cours...
What is an undefined reference/unresolved external symbol error and how do I fix it?
...cuted. [SNIP]
Each source character set member in a character literal or a string literal, as well as each escape sequence and universal-character-name
in a character literal or a non-raw string literal, is converted to
the corresponding member of the execution character set; [SNIP]
Adjacent string ...
UITableViewCell, show delete button on swipe
...ViewController, UITableViewDelegate, UITableViewDataSource {
// These strings will be the data for the table view cells
var animals: [String] = ["Horse", "Cow", "Camel", "Pig", "Sheep", "Goat"]
let cellReuseIdentifier = "cell"
@IBOutlet var tableView: UITableView!
override fu...
Scala: write string to file in one statement
... @Kakaji, could you please elaborate? I've just tested it with strings with newlines, and it works perfectly. It just cannot filter anything - Files.write() writes the byte array as a blob, without analyzing its contents. After all, in some binary data 0x0d byte may have important meanin...
Get all object attributes in Python? [duplicate]
...looking for, but... attrs = dir(obj) will store the array of attributes as strings in attrs. Then to access them, you can always use getattr(obj, attrs[i]) to get the ith attribute in the attrs array.
– Nick Merrill
Jun 27 '14 at 1:57
...
TypeLoadException says 'no implementation', but it is implemented
...faceDef, add just one class, and build:
public interface IInterface
{
string GetString(string key);
//short GetShort(string key);
}
Create a second class library project: Implementation (with separate solution), copy InterfaceDef.dll into project directory and add as file reference, add ju...