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JavaScript Nested function
...variables, the nested functions are local and therefore cannot be obtained from the outside scope.
function foo() {
function bar() {
return 1;
}
return bar();
}
foo manipulates bar within itself. bar cannot be touched from the outer scope unless it is defined in the outer scop...
What is the (function() { } )() construct in JavaScript?
...execution. Although the actual implementation (and naming :)) ) may differ from browser to browser, we can determine these phases in our code by watching out for parsing errors, hoisting and run time errors. I personally haven't found many resources on this because it's too low level and it's not so...
Python exit commands - why so many and when should each be used?
...ax and reserving another keyword. This is similar to why print was changed from a statement to a function. It's easy to add syntax, but there's a complexity cost in doing so.
– user2357112 supports Monica
Dec 7 '18 at 19:58
...
Using “super” in C++
... private, to avoid the problem when the 'inherited' is erroneously omitted from a class but a subclass tries to use it.
class MyClass : public MyBase
{
private: // Prevents erroneous use by other classes.
typedef MyBase inherited;
...
My standard 'code template' for creating new classes includ...
How to size an Android view based on its parent's dimensions
...r view, then call super.onMeasure. Remember, your LayoutParams are derived from your view's parent type, not your view's type.
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){
int parentWidth = MeasureSpec.getSize(widthMeasureSpec);
int parentHeight = MeasureS...
How to load up CSS files using Javascript?
...ude the javascript, and make sure the CSS path is absolute so it is loaded from your servers.
VanillaJS
Here is an example that uses plain JavaScript to inject a CSS link into the head element based on the filename portion of the URL:
<script type="text/javascript">
var file = location.path...
Can “this” ever be null in Java?
...d (§15.12), or to the object being constructed.
If you invoked a method from an object, then the object exists or you would have a NullPointerException before (or it's a static method but then, you can't use this in it).
Resources :
JLS - this keyword
...
Origin is not allowed by Access-Control-Allow-Origin
...x requests, this chrome plugin automatically allows you to access any site from any source by adding the proper response header
Chrome Extension Allow-Control-Allow-Origin: *
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What is the Python equivalent of static variables inside a function?
...e function is called and not when the module is executed or when something from it is imported, which is the case if you use the decorator approach from the currently accepted answer. See Python decorator function execution. If you have a huge library module then every decorator will be run, includi...
Is it possible to determine whether ViewController is presented as Modal?
... iOS5+, As you can see in UIViewController Class Reference, you can get it from property "presentingViewController".
presentingViewController
The view controller that presented this view controller. (read-only)
@property(nonatomic, readonly) UIViewController *presentingViewController
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