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UIImagePickerController provides an almost out of the box solution to allow the user to select an image from their device or take a picture with the camera and then present that image. By conforming to the UIImagePickerControllerDelegate, you can create logic that specifies in your app how to presen...
Swift has an official style guide: Swift.org API Design Guidelines. Another popular guide is The Official raywenderlich.com Swift Style Guide.
One way binding from parent component to nested component: [propertyName] One way binding from nested component to parent component: (propertyName) Two-way binding (a.k.a banana box notation) : [(propertyName)]
Another benefit from using braced expression strings is that the byte compiler usually can generate more efficient code (5 - 10x faster) from them.
var foo [= value [, foo2 [, foo3 ... [, fooN]]]]; let bar [= value [, bar2 [, foo3 ... [, barN]]]]; const baz = value [, baz2 = value2 [, ... [, bazN = valueN]]]; See also: Reserved Keywords Scope
(yield -- Allows you to export items from a component (hash -- Allows you to export a hash or object, since this is required to call child components within the parent's block. The requirement is that there is a . for the component to be created (component -- Creates the child component which c...
Content providers manage access to a structured set of data. They encapsulate the data, and provide mechanisms for defining data security. Content providers are the standard interface that connects data in one process with code running in another process. When you want to access data in a content...
Status CodeReason-Phrase — Description100Continue — the client should send the following part of a multi-part request.101Switching Protocols — the server is changing the version or type of protocol used in this communication.200OK — the server has received and completed the client's request.201Crea...
f(n) = ... function f(n) ... end n::Type x -> ... f(n) do ... end Aside from generic functions (which are most common), there are also built-in functions. Such functions include is, isa, typeof, throw, and similar functions. Built-in functions are typically implemented in C instead ...
An expression can be explicitly converted or cast to type T using dynamic_cast<T>, static_cast<T>, reinterpret_cast<T>, or const_cast<T>, depending on what type of cast is intended. C++ also supports function-style cast notation, T(expr), and C-style cast notation, (T)expr. ...
config.vm.provision "shell", inline: COMMANDS config.vm.provision "shell", path: "relativePath/script.sh" ParameterDetailsCOMMANDSThe shell commands to run. Can be a string (e.g. "echo \"Hello, World!\"") or a string variable (e.g. $setup). ...
Inside a specific node: {path-to-parent}/name()='search string'] Anywhere in the document: //*[name()='search string'] functionreturn valuelocal-name()the node's name without prefix local-name() result does not include prefix (lookup name() XPATH function for it)
objectskeysAn array containing the values for the new dictionary.CellAn array containing the keys for the new dictionary. Each key is copied and the copy is added to the dictionary.

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