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@{ key: value, ... } [NSDictionary dictionaryWithObjectsAndKeys: value, key, ..., nil]; dict[key] = value; id value = dict[key]; The NSDictionary class declares the programmatic interface to objects that manage immutable associations of keys and values. Use this class or ...
JSON (JavaScript Object Notation) is one of the most popular and widely accepted data exchange format originally specified by Douglas Crockford. It is currently described by two competing standards, RFC 71592 and ECMA-404. The ECMA standard is minimal, describing only the allowed grammar syntax, ...
Nothing is really random and thus the javadoc calls those numbers pseudorandom. Those numbers are created with a pseudorandom number generator.
ParameterDetails=For using two-way data binding. This means that if you update that variable in your component scope, the change will be reflected on the parent scope.<One-way bindings when we just want to read a value from a parent scope and not update it.@String parameters.&For callbacks i...
Ionic is a framework for developing mobile applications with HTML, CSS, and JavaScript. Ionic applications run as native applications and have a native "look and feel". Ionic is built on the AngularJS framework and provides a complete solution to design, build, and package mobile applic...
This section provides an overview of what Symfony2 is and why a developer might want to use it. It should also mention any large subjects within Symfony2 and link out to the related topics. Since the Documentation for Symfony2 is new, you may need to create initial versions of those related topic...
This section provides an overview of what coldfusion is, and why a developer might want to use it. It should also mention any large subjects within coldfusion, and link out to the related topics. Since the Documentation for coldfusion is new, you may need to create initial versions of those rela...
Recursion occurs when a method calls itself. Such a method is called recursive. A recursive method may be more concise than an equivalent non-recursive approach. However, for deep recursion, sometimes an iterative solution can consume less of a thread's finite stack space. This topic includes examp...
async and await build on top of promises and generators to express asynchronous actions inline. This makes asynchronous or callback code much easier to maintain. Functions with the async keyword return a Promise, and can be called with that syntax. Inside an async function the await keyword can be...
While Python's context managers are widely used, few understand the purpose behind their use. These statements, commonly used with reading and writing files, assist the application in conserving system memory and improve resource management by ensuring specific resources are only in use for certain ...
position: static|absolute|fixed|relative|sticky|initial|inherit|unset; z-index: auto|number|initial|inherit; ParameterDetailsstaticDefault value. Elements render in order, as they appear in the document flow. The top, right, bottom, left and z-index properties do not apply.relativeThe ele...
An exception is an object that represents the occurrence of an exceptional condition. In other words, it indicates that something went wrong. In Ruby, exceptions are often referred to as errors. That's because the base Exception class exists as a top-level exception object element, but user-defin...
Official documentation Manifest File Format Format Manifest file is written in JSON (JavaScript Object Notation) format. This format differs from more loose rules of writing object literals in JavaScript code. Among important differences: Every key name and string literal must be in d...
This section provides an overview of what ironpython is, and why a developer might want to use it. It should also mention any large subjects within ironpython, and link out to the related topics. Since the Documentation for ironpython is new, you may need to create initial versions of those rela...
CAAnimation is an abstract animation class. It provides the basic support for the CAMediaTiming and CAAction protocols. To animate Core Animation layers or Scene Kit objects, create instances of the concrete subclasses CABasicAnimation, CAKeyframeAnimation, CAAnimationGroup, or CATransition. ...
This section provides an overview of what symfony3 is, and why a developer might want to use it. It should also mention any large subjects within symfony3, and link out to the related topics. Since the Documentation for symfony3 is new, you may need to create initial versions of those related to...
func Marshal(v interface{}) ([]byte, error) func Unmarshal(data []byte, v interface{}) error The package "encoding/json" Package json implements encoding and decoding of JSON objects in Go. Types in JSON along with their corresponding concrete types in Go are: JSON TypeGo Con...
Function([DISTINCT] expression) -DISTINCT is an optional parameter AVG ( [ ALL | DISTINCT ] expression ) COUNT( { [ALL | DISTINCT ] expression ] | * } ) GROUPING(<column_expression>) MAX ( [ ALL | DISTINCT ] expression ) MIN ( [ ALL | DISTINCT ] expression ) SUM ( [ ALL | DISTINCT ] e...

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