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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.
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.
A Feature Tree (sometimes also known as a Feature Model or Feature Diagram) is a hierarchical diagram that visually depicts the features of a solution in groups of increasing levels of detail. Feature Trees are great ways to summarize the features that will be included in a solution and how they are related in a simple visual manner. [2]
GNU Guile features an ECMAScript interpreter as of version 1.9; iv, ECMAScript Lexer / Parser / Interpreter / VM / method JIT written in C++. [10] CL-JavaScript: Can compile JavaScript to machine language on Common Lisp implementations that compile to machine language. [11]
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You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.