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Its features include exponentiation operator ** for numbers, await, async keywords for asynchronous programming (as a preparation for ES2017), and the Array.prototype.includes function. [5] The exponentiation operator is equivalent to Math.pow , but provides a simpler syntax similar to languages like Python, F#, Perl, and Ruby.
Polyfills create new features for older environments that lack them. Polyfills do this at runtime in the interpreter, such as the user's browser or on the server. Instead, transpiling rewrites the ECMA code itself during the build phase of development before it reaches the interpreter.
Name Underlying data model Full and Latest SysML support Full and Latest UML support XMI Automated document generation OSLC support Can be integrated with Astah: Yes Partial ...
generated diagrams highlighting and linking of generated doc parameter types extracted Ddoc: with macros Document! X customizable HTML based templates, custom comment tags linked graphical object relationship diagrams internal links and links to .NET framework documentation types extracted and linked Doxygen: with XSLT
Concurrent React, Automatic batching, New Suspense Features, Transitions, Client and Server Rendering APIs, New Strict Mode Behaviors, New Hooks [60] 18.1.0 26 April 2022 Many fixes and performance improvements 18.2.0 14 June 2022 Many more fixes and performance improvements 18.3.0 25 April 2024 Adds deprecation warnings for features in React 19.
Includes glossary, data dictionary, and issue tracking. Supports use case diagrams, auto-generated flow diagrams, screen mock-ups, and free-form diagrams. clang-uml: Unknown Unknown Unknown Unknown No C++ PlantUML, Mermaid.js Generate PlantUML and Mermaild.js diagrams from existing C++ codebase. Dia: Partly No No No
This merge brought V8 ES6 features into Node.js and started a long-term support release cycle. [25] By 2016, the io.js website recommended returning to Node.js and announced no further io.js releases, effectively ending the fork and solidifying the merger's success. [26]
A generator is very similar to a function that returns an array, in that a generator has parameters, can be called, and generates a sequence of values. However, instead of building an array containing all the values and returning them all at once, a generator yields the values one at a time, which requires less memory and allows the caller to ...