Learn Module loaders/bundlers

Webpack:

• Webpack
• Webpack Deep Dive [read]
• Webpack Fundamentals [watch][$]
• Survivejs.com Webpack Book [read]

Rollup:

• Rollup

SystemJS:

• Modern, Modular JavaScript with SystemJS and jspm [watch][$]

NOTES:

It is not uncommon for developers to use a tool like Gulp for bundling JS modules. However, many of the Gulp plugins simply use Webpack, Rollup, or SystemJS under the hood.