Richard Doe rwd

Setting up Jest with ESM

Here are some different ways on how to set up Jest to support ESM. This applies for Jest v25, Node v13, and Babel v7.

Method A: Native Node.js support

Node v14 and Jest v26 support ESM natively with the --experimental-vm-modules flag.

Install cross-env:

Setting up Vue tests (with coverage) for mocha and Webpack

There are seemingly a few incompatibilities with Vue and Istanbul/nyc at the moment, making it a bit difficult to set up proper coverage reporting for Vue files. Thankfully, there's a relatively easy way to fix that!

This will walk you through everything you need to do to add tests and coverage reporting to your vue-cli based project.

Install dependencies for testing and coverage reporting

yarn add -D @vue/cli-plugin-unit-mocha @vue/test-utils istanbul-instrumenter-loader nyc

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

	# lib/tasks/db.rake
	namespace :db do

	desc "Dumps the database to db/APP_NAME.dump"
	task :dump => :environment do
	cmd = nil
	with_config do \|app, host, db, user\|
	cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
	end
	puts cmd

	<!-- A scaffolded edit view converted to mustache -->

	<h1>Editing post</h1>

	{{#form}}
	{{#errors?}}
	<div id="error_explanation">
	<h2>{{error_header}}</h2>
	</div>
	<ul>

Richard Doe rwd

Setting up Jest with ESM

Method A: Native Node.js support

Setting up Vue tests (with coverage) for mocha and Webpack

Semantic Commit Messages

Example