You can import the default export by either import Test2 from ‘./test’; or import {default as Test2} from ‘./test’; The default export doesn’t have Test as a name that you would need to alias – you just need to import the default under the name that you want. The best docs I’ve found so far … Read more
Update: As others have pointed out, this doesn’t really work. @kuboon has a nice workaround in an answer below here.. You can do this class Foo { get bar() { return (async () => { return await someAsyncOperation(); })(); } } which again is the same as class Foo { get bar() { return new … Read more
You don’t tell Babel to target ES5, you choose the necessary presets/plugins that do that for you. For example, if you use the es2015 preset, this will compile ES6 code to ES5-compatible code. You don’t specify a “target”. The guide below will take you through using Babel to transform ES6 code into code that can … Read more
Nearly. It does however depend on how you are exporting them. named exports (export var batz = …): import {batz as Bar} from ‘foo’; default-exported object (export default {batz: …};) – should not be used: import Foo from ‘foo’; var Bar = Foo.batz;
Presumably component/Data and actions/Data both have default exports rather than named exports? Like this: export default class Data {} If that’s the case, then the importer can call the variables whatever they like: import Data1 from ‘component/Data.js’; import Data2 from ‘actions/Data.js’; If they are named exports: export class Data {} Then you need to use … Read more
Babel’s stage presets equate to the TC39 Process and the different states of each proposal for a potential language change. They include implementations and polyfills for all of the proposed changes in that stage. Anything currently in Stage-0 is Strawman, not ES6. It is future Javascript and absolutely not certain that it will ever make … Read more
console.log(‘last’, [1, 3, 4, 5].slice(-1)); console.log(‘second_to_last’, [1, 3, 4, 5].slice(-2));
From my answer to another question, this can be simpler: The only requirement is to configure your test environment to Babel, and add the ECMAScript 6 transform plugin: Step 1: Add your test environment to .babelrc in the root of your project: { “env”: { “test”: { “plugins”: [“@babel/plugin-transform-modules-commonjs”] } } } Step 2: Install the … Read more
If you want CommonJS export behavior, you’ll need to use CommonJS directly (or use the plugin in the other answer). This behavior was removed because it caused confusion and lead to invalid ES6 semantics, which some people had relied on e.g. export default { a: ‘foo’ }; and then import {a} from ‘./foo’; which is … Read more