anddoutoi

function isInTheDOM(element) {
	return element.ownerDocument === getRootNode(element);
	
	function getRootNode(element) {
		var rootNode = element;
		var parentNode;

		while (parentNode = rootNode.parentNode) {
			rootNode = parentNode;
		}

anddoutoi

function makeCar(brand, model) {
	return {
		brand,
		model,
	};
}

const makeToyota = makeCar.bind(null, 'Toyota');
const makeVolvo = makeCar.bind(null, 'Volvo');

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Overloard

Utility function to create overloaded functions

• Start in usage.js and follow the imports
• Userland interesting stuff can be found in factories.js
• usage.js for examples of… usages

anddoutoi

const foos = ['fubar']
const foo = undefined
const defaultFoos = ['snafu']
const fubar = foos ? foos : foo ? [foo] : defaultFoos
console.log(fubar)

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Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

1. Use ESM yourself. (preferred)
   Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
2. If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
3. Stay on the existing version of the package until you can move to ESM.

anddoutoi

NPM Commands, Scripts, Life-cycle Phases

The following describes the behaviour of several npm commands, particularly w.r.t. the scripts that are run in each, for NPM version 6.5.0.

npm build <other-package-folder>

1. npm run preinstall
2. link binaries (node-gyp)
3. for each bin command in other package: