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Combining two expressions (Expression)
...t;(body, newParameter);
}
[TestMethod]
public void ExpressionText()
{
string text = "test";
Expression<Func<Coco, bool>> expr1 = p => p.Item1.Contains(text);
Expression<Func<Coco, bool>> expr2 = q => q.Item2.Contains(text);
Expression<Func<Coco, ...
Get model's fields in Django
... and each element is a Model field type, which can't be used directly as a string. So, field.name will return the field name
my_model_fields = [field.name for field in MyModel._meta.get_fields()]
The above code will return a list conatining all fields name
Example
In [11]: from django.contrib.aut...
Interface defining a constructor signature?
...n of the problem). Suppose we could have:
interface IPerson
{
IPerson(string name);
}
interface ICustomer
{
ICustomer(DateTime registrationDate);
}
class Person : IPerson, ICustomer
{
Person(string name) { }
Person(DateTime registrationDate) { }
}
Where by convention the impleme...
difference between foldLeft and reduceLeft in Scala
... For example:
List(1,3,5).foldLeft(0) { _ + _ }
List(1,3,5).foldLeft(List[String]()) { (a, b) => b.toString :: a }
The foldLeft will apply the closure with the last folded result (first time using initial value) and the next value.
reduceLeft on the other hand will first combine two values f...
How can we run a test method with multiple parameters in MSTest?
...bute.
Example
public TestContext TestContext { get; set; }
private List<string> GetProperties()
{
return TestContext.Properties
.Cast<KeyValuePair<string, object>>()
.Where(_ => _.Key.StartsWith("par"))
.Select(_ => _.Value as string)
.ToLi...
Passing parameters to addTarget:action:forControlEvents
...ass something other than integers? what if I need to pass an object like a string?
– user102008
Apr 6 '11 at 22:55
@us...
How to read keyboard-input?
...
always put an space after your string for the user to enter his input if peace. Enter Tel12340404 vs Enter Tel: 12340404. see! :P
– Mehrad
May 6 '14 at 0:10
...
How to check if a string is a valid date
I have a string: "31-02-2010" and want to check whether or not it is a valid date.
What is the best way to do it?
14 Answ...
Algorithm to generate a crossword
...ithout intervention but you'd still get maybe a fifth requiring one or two extra words added. And we're talking about thousands of words in the file. No doubt backtracking could have helped but it was easier just for the client to reject one with (e.g.) 5 unfinished words than worry about trying to ...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...That code is using the re module (regular expressions), it searchs for the string 'url_list_gb_messages="(.*)"' and isolates the content of parentheses in the variable of same name. This is a nice intro: guru99.com/python-regular-expressions-complete-tutorial.html
– MGP
...