As it’s already mentioned, for background script, it’s good idea to use background.page and use <script type=”module”> to kick your JavaScript. The problem is content script, and injecting <script> tag with type attribute can be a solution. Another approach than injecting script tag is to use dynamic import function. By this approach, you don’t need … Read more
Classes have a “class body” that is a constructor. If you use an internal constructor() function, that function would be the same class body as well, and would be what is called when the class is called, hence a class is always a constructor. Constructors requires the use of the new operator to create a … Read more
TL;DR Indeed ES import statements import default and import * are not the same thing, the fact that they behave the same in this case is a combination of how React authors chose to publish the library and compatibility layers in TypeScript (using esModuleInterop) or Babel and your bundler to make them “just work”. It … Read more
In addition to commit, actions has default injected parameters which are dispatch, getters and rootGetters. So you can simply write; sendDataToServer({ commit, getters }, payload) to access getters.
They both behave differently when a object referenced by their keys/values gets deleted. Lets take the below example code: var map = new Map(); var weakmap = new WeakMap(); (function(){ var a = {x: 12}; var b = {y: 12}; map.set(a, 1); weakmap.set(b, 2); })() The above IIFE is executed there is no way we … Read more
I’ll give this a try. Note that I’m not affiliated with ECMA and have no visibility into their decision-making process, so I cannot definitively say why they have or have not done anything. However, I’ll state my assumptions and take my best shot. 1. Why add a for…of construct in the first place? JavaScript already … Read more
Do I need require js when I use babel? You might need some module loader, but it is not necessary RequireJS. You have several options. The following will help you to get started. rollup.js with rollup-plugin-babel Rollup is a next-generation JavaScript module bundler. It understands ES2015 modules natively, and will produce a bundle that doesn’t … Read more
You could destructure with a renaming and take the same property for destructuring. const a = { b: { c: ‘Hi!’ } }; const { b: formerB, b: { c } } = a; console.log(formerB) console.log(c);
The parenthesis are returning a single value, the curly braces are executing multiple lines of code. Your example looks confusing because it’s using JSX which looks like multiple “lines” but really just gets compiled to a single “element.” Here are some more examples that all do the same thing: const a = (who) => “hello … Read more
These setter and getter allow you to use the properties directly (without using the parenthesis) var emp = new Employee(“TruMan1”); if (emp.name) { // uses the get method in the background } emp.name = “New name”; // uses the setter in the background This is only to set and get the value of the property.