You need to specify Symbol.iterator property for SomeClass which returns iterator for class instances. Iterator must have next() method, witch in turn returns object with done and value fields. Simplified example: function SomeClass() { this._data = [1,2,3,4]; } SomeClass.prototype[Symbol.iterator] = function() { var index = 0; var data = this._data; return { next: function() { … Read more
They’re just not implemented yet. Node 6.0.0 uses a version of V8 with most of ES6 features completed. Unfortunately modules isn’t one of those completed features. node –v8-options | grep harmony in progress harmony flags are not fully implemented and usually are not working: –es_staging (enable test-worthy harmony features (for internal use only)) –harmony (enable … Read more
After some trying I could find a solution that looks pretty nice like that: const b = Object.assign({}, a, { user: { …a.user, groups: ‘some changed value’ } }); To make that answer more complete here a tiny note: const b = Object.assign({}, a) is essentially the same as: const b = { …a } … Read more
You could use Rest syntax in Object Destructuring to get all the properties except drugName to a rest variable like this: const transformedResponse = [{ drugName: ‘HYDROCODONE-HOMATROPINE MBR’, drugStrength: ‘5MG-1.5MG’, drugForm: ‘TABLET’, brand: false }, { drugName: ‘HYDROCODONE ABC’, drugStrength: ’10MG’, drugForm: ‘SYRUP’, brand: true }] const output = transformedResponse.map(({ drugName, …rest }) => rest) … 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;
The filename should be .jshintrc, and the content is { “esversion”: 6 }
Export an “exportedForTesting” const function shouldntBeExportedFn(){ // Does stuff that needs to be tested // but is not for use outside of this package } export function exportedFn(){ // A function that should be called // from code outside of this package and // uses other functions in this package } export const exportedForTesting = … Read more
An excerpt from eslint regarding the issue: Require Object Literal Shorthand Syntax (object-shorthand) – Rule Details This rule enforces the use of the shorthand syntax. This applies to all methods (including generators) defined in object literals and any properties defined where the key name matches name of the assigned variable. Change closeOnSelect: closeOnSelect to just … Read more
A year and some later, here is the best information I’ve found on the subject. There are 4 types of exports. Here are usage examples of each, along with some imports that use them: Export Syntax // default exports export default 42; export default {}; export default []; export default (1 + 2); export default … Read more
Older versions of Babel came with everything out of the box. The newer version requires you install whichever plugins your setup needs. First, you’ll need to install the ES2015 preset. npm install babel-preset-es2015 –save-dev Next, you need to tell babelify to use the preset you installed. return browserify({ … }) .transform(babelify.configure({ presets: [“es2015”] })) … … Read more