JavaScript Developer - Gateshead
ES Modules were introduced in ECMAScript 2015, and can now be used in most modern browsers. NodeJS uses the CommonJS module system, but work is currently underway to finalise ES Modules support in NodesJS, and you can use it today by using experimental flags, or a pre-processor such as Babel.js.
Loading large images can cause a delay in the initial paint for your page, a possible solution for this is to show a placeholder image instead then swap in the original image after loading.
Introduced in ES2015 let and const are additional ways to declare variables, alongside the traditional var keyword.
Default parameters allow you to initialise parameters with default values and are an incredibly useful tool in JavaScript.
My preferred editor is VS Code by Microsoft, which recently was voted #1 developer tool in the 2018 Stack Overflow Developers survey. It is fast, stable, feature-rich and has an extensive marketplace of extensions to add to the built-in features.