ecmascript-6

What is the defined execution order of ES6 imports?

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JavaScript modules are evaluated asynchronously. However, all imports are evaluated prior to the body of module doing the importing. This makes JavaScript modules different from CommonJS modules in Node or <script> tags without the async attribute. JavaScript modules are closer to the AMD spec when it comes to how they are loaded. For more detail, … Read more

Defer execution for ES6 Template Literals

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I can see three ways around this: Use template strings like they were designed to be used, without any format function: console.log(`Hello, ${“world”}. This is a ${“test”}`); // might make more sense with variables: var p0 = “world”, p1 = “test”; console.log(`Hello, ${p0}. This is a ${p1}`); or even function parameters for actual deferral of … Read more

unexpected reserved word import in node.js

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import is a part of ECMAScript 2015 (ES6) standard and as Amit above mentioned it is not currently implemented natively in Nodejs. So you can use transpiler like babel to run your es6 script npm install babel An example based on this answer app.js import {helloworld,printName} from ‘./es6’ helloworld(); printName(“John”); es6.js module.exports = { helloworld: … Read more

Find all matching elements with in an array of objects [duplicate]

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Two things: first, Array.find() returns the first matching element, undefined if it finds nothing. Array.filter returns a new array containing all matching elements, [] if it matches nothing. Second thing, if you want to match 4,5, you have to look into the string instead of making a strict comparison. To make that happen we use … Read more