# Install ESLint and Babel ESLint
# Make sure to install at least v5.1.0 of ESLint
npm install --save-dev eslint babel-eslint
# Install the Airbnb configs (3 of them, listed below)
npx install-peerdeps --dev eslint-config-airbnb
# Install Prettier + ESLint config
npm install --save-dev --save-exact prettier eslint-config-prettier
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// Determine if an element is in the visible viewport | |
function isInViewport(element) { | |
var rect = element.getBoundingClientRect(); | |
var html = document.documentElement; | |
return ( | |
rect.top >= 0 && | |
rect.left >= 0 && | |
rect.bottom <= (window.innerHeight || html.clientHeight) && | |
rect.right <= (window.innerWidth || html.clientWidth) | |
); |
When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:
const Article = require('../../../../app/models/article');
Those suck for maintenance and they're ugly.