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Get the first item from an iterable that matches a condition
...xt(x for x in the_iterable if x > 3)
If you want default_value (e.g. None) to be returned instead:
next((x for x in the_iterable if x > 3), default_value)
Note that you need an extra pair of parentheses around the generator expression in this case − they are needed whenever the generato...
Android ListView with different layouts for each row
...ndViewById() every time in getView method. See List14 in API demos.
Create one generic layout that will conform all combinations of properties and hide some elements if current position doesn't have it.
I hope that will help you. If you could provide some XML stub with your data structure and info...
Understanding implicit in Scala
...B): A will do as well.
So the difference between your methods is that the one marked implicit will be inserted for you by the compiler when a Double is found but an Int is required.
implicit def doubleToInt(d: Double) = d.toInt
val x: Int = 42.0
will work the same as
def doubleToInt(d: Double)...
How do I fix "The expression of type List needs unchecked conversion…'?
...swered Dec 15 '08 at 7:23
ericksonerickson
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Return type of '?:' (ternary conditional operator)
...pile time and must be appropriate whether or not the condition is true. If one of the operands must be converted to a different type to match the other then the conditional expression cannot be an lvalue as the result of this conversion would not be an lvalue.
ISO/IEC 14882:2011 references:
3.10 [b...
Selenium wait until document is ready
Can anyone let me how can I make selenium wait until the time the page loads completely? I want something generic, I know I can configure WebDriverWait and call something like 'find' to make it wait but I don't go that far. I just need to test that the page loads successfully and move on to next pag...
Generate random int value from 3 to 6
...(%) divides by that number and returns the remainder (meaning max value is one less than the number you use)
ABS changes negative results to positive
then add one to the result to eliminate 0 results (to simulate a dice roll)
...
Binding an enum to a WinForms combo box, and then setting it
...at the value must be a valid enum value and if it isnt then something has gone very wrong and you probably want an exception.
– bytedev
Oct 6 '16 at 9:31
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How to get current route in Symfony 2?
...As such, Symfony doesn't know what route that is for. Typically, you have one route to one controller, so it may seem weird that this can't report anything besides "_internal", however, it is possible to create general-purpose controllers that get associated with more than one route definition. Wh...
@class vs. #import
It is to my understanding that one should use a forward-class declaration in the event ClassA needs to include a ClassB header, and ClassB needs to include a ClassA header to avoid any circular inclusions. I also understand that an #import is a simple ifndef so that an include only happens once....