# Babelæ¬ä½ããã©ã°ã¤ã³ã®ã¤ã³ã¹ãã¼ã« $ yarn global add @babel/core @babel/cli $ yarn add babel-plugin-flow-to-typescript # Babel v7 以ä¸ãå¿ è¦ã§ã $ babel --version 7.0.0-beta.44 (@babel/core 7.0.0-beta.44) # 夿 $ babel --plugins babel-plugin-flow-to-typescript (å ¥åFlowãã¡ã¤ã«) -o (åºåTSãã¡ã¤ã«) ãã©ã°ã¤ã³ã«ã¤ã㦠babel-plugin-flow-to-typescript - GitHub Babelã§ãã¼ã¹ããASTããã©ãã¼ã¹ããFlowã®ç¬èªæ§æãçºè¦ããã対å¿ããTSã®æ§æã«ç½®ãæãããã¨ããåç´ãªãã®ã§ãã åèã«ãããµã¤ã babelãã©
Exampleâ Below is a class with four class properties which will be transformed. class Bork { //Property initializer syntax instanceProperty = "bork"; boundFunction = () => { return this.instanceProperty; }; //Static class properties static staticProperty = "babelIsCool"; static staticFunction = function() { return Bork.staticProperty; }; } let myBork = new Bork(); //Property initializers are not o
Babel started out as a transpiler to let you write the latest version of the ECMAScript specification but ship to environments that don't implement those features yet. But it has become much more than that. "Compilers are the New Frameworks" says Tom Dale and I could not agree more. We're seeing more and more compile-time optimizations for libraries and frameworks. I'm not talking about syntax ext
Example In export default 42; Out define(["exports"], function (exports) { "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = 42; }); Installation npm install --save-dev babel-plugin-transform-es2015-modules-amd Usage With a configuration file (Recommended) { "plugins": ["transform-es2015-modules-amd"] } Via CLI babel --plugins transform-es2015-modules-a
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