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WebDriver: check if an element exists? [duplicate]
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and the size is not a method - driver.findElements( By.id("...") ).size != 0
– Gal Bracha
Feb 1 '15 at 12:26
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How to redirect to Index from another controller?
...ontroller name too...
return RedirectToAction("Index", "MyController");
and
@Html.ActionLink("Link Name","Index", "MyController", null, null)
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C++ Structure Initialization
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I personally like and recommend this style
– Dinesh P.R.
Jul 17 '12 at 6:22
40
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How to retrieve a user environment variable in CMake (Windows)
...Name="Hello World" cmake ..
env [--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...
Run command in a modified environment.
Just be aware that this may only work the first time. If CMake re-configures with one of the consecutive builds (you just call e.g. make, one CMakeLists.txt was cha...
Android - Center TextView Horizontally in LinearLayout
...rLayout it is already in the horizontal center of the layout. When you use android:layout_gravity it places the widget, as a whole, in the gravity specified. Instead of placing the whole widget center what you're really trying to do is place the content in the center which can be accomplished with a...
Python Requests package: Handling xml response
I like very much the requests package and its comfortable way to handle JSON responses.
1 Answer
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What is a good pattern for using a Global Mutex in C#?
The Mutex class is very misunderstood, and Global mutexes even more so.
8 Answers
8
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Cannot pass null argument when using type hinting
...on Type $t = null whereas if you need to make an argument accept both null and its type, you can follow above example.
You can read more here.
PHP 7.0 or older
You have to add a default value like
function foo(Type $t = null) {
}
That way, you can pass it a null value.
This is documented i...
How can I change UIButton title color?
... ViewController, The following instance method to change UIFont, tintColor and TextColor of the UIButton
Objective-C
buttonName.titleLabel.font = [UIFont fontWithName:@"LuzSans-Book" size:15];
buttonName.tintColor = [UIColor purpleColor];
[buttonName setTitleColor:[UIColor purpleColor] forSta...
I want to get the type of a variable at runtime
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So, strictly speaking, the "type of a variable" is always present, and can be passed around as a type parameter. For example:
val x = 5
def f[T](v: T) = v
f(x) // T is Int, the type of x
But depending on what you want to do, that won't help you. For instance, may want not to know what is ...