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Why historically do people use 255 not 256 for database field magnitudes?
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And reading into char foo[256] is important because memory management likes powers of 2. see: stackoverflow.com/questions/3190146/… Allocating char foo[257] will either fragment memory or take up 512 bytes.
– ebyrob
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How to get request URI without context path?
...pring MVC. It will then represent the MVC framework's internal path (e.g. /foo.xhtml instead of /foo.jsf) and not the actual request URI (the one as enduser would see in browser's address bar). The original servlet path is in such case however resolveable as request attribute with key RequestDispatc...
Don't understand why UnboundLocalError occurs (closure) [duplicate]
...lError from a statement that uses an unbounded imported name. Example: def foo(): bar = deepcopy({'a':1}); from copy import deepcopy; return bar, then from copy import deepcopy; foo(). The call succeeds if the local import from copy import deepcopy is removed.
– Yibo Yang
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What's the difference between “declare class” and “interface” in TypeScript
...use.
declare class is for when you want to describe an existing class (usually a TypeScript class, but not always) that is going to be externally present (for example, you have two .ts files that compile to two .js files and both are included via script tags in a webpage). If you inherit from a cla...
The new syntax “= default” in C++11
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A defaulted default constructor is specifically defined as being the same as a user-defined default constructor with no initialization list and an empty compound statement.
§12.1/6 [class.ctor] A default constructor that is defaulted and not defined as deleted is im...
How to get a list of properties with a given attribute?
...rties that have the attribute MyAttribute . The attribute is marked with AllowMultiple = false , like this:
6 Answers
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JavaScript DOM remove element
...e's a slightly more succinct way of removing an element from the DOM than calling .removeChild(element) on its parent, which is to just call element.remove(). In due course, this will probably become the standard and idiomatic way of removing an element from the DOM.
The .remove() method was added ...
Check if class already assigned before adding
...ed to an element before adding that class? Will it even have any effect at all?
4 Answers
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Passing an array to a function with variable number of args in Swift
... Great! This works with multiple (named) parameters, too; e.g.: func sumOf(foo numbers: Int..., bar: Bool) -> Int {}; requires typealias Function = (foo: [Int], bar: Bool) -> Int;
– ThomasR
Sep 11 '16 at 9:45
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How to use a keypress event in AngularJS?
...nput ng-model="edItem" type="text"
ng-keypress="($event.which === 13)?foo(edItem):0"/>
And the ng-ui alternative:
<input ng-model="edItem" type="text" ui-keypress="{'enter':'foo(edItem)'}"/>
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