![]() JS Async JS Callbacks JS Asynchronous JS Promises JS Async/Await ![]() ![]() JS Classes Class Intro Class Inheritance Class Static JS Functions Function Definitions Function Parameters Function Invocation Function Call Function Apply Function Bind Function Closures JS Objects Object Definitions Object Properties Object Methods Object Display Object Accessors Object Constructors Object Prototypes Object Iterables Object Sets Object Maps Object Reference In addition to the named input variables passed into a template evaluation, local variables may be declared as well.JS Tutorial JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Let JS Const JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS String Search JS String Templates JS Numbers JS BigInt JS Number Methods JS Number Properties JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Array Const JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random JS Booleans JS Comparisons JS If Else JS Switch JS Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Maps JS Typeof JS Type Conversion JS Bitwise JS RegExp JS Precedence JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function JS Classes JS Modules JS JSON JS Debugging JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words This will all be explained later, but let’s start with a very simple example that demonstrates the basic usage of the library. To install JSON-fx into a Node.js project or a modern browser client project that uses NPM (such as an Angular or React project): npm install A simple example Like many modern JavaScript libraries, JSON-fx is distributed as an NPM package. The JSON-fx core library, which includes the parser/compiler and a built-in set of functions, has no external runtime dependencies, giving it an extremely compact footprint. The library includes a large collection of built-in functions and operators and is easily extensible. These are efficient and lightweight wrappers around the native JavaScript code they execute. JSON-fx expressions are embedded in JSON objects known as templates, which are parsed and compiled at runtime into expression trees. Use cases could include any scenario in which the query of values from JSON data, or transformation of entire JSON objects, is best implemented through runtime configuration rather than hard-coded into application logic. ![]() It defines an intuitive, declarative syntax for expressing an output value as a function of one or more input values. JSON-fx is an object query and transform engine for JavaScript.
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