Variables (var, let and const) - 🔗 https://scotch.io/courses/10-need-to-know-javascript-concepts/declaring-javascript-variables-var-let-and-const

Data types - 🔗 https://digitalocean.com/community/tutorials/understanding-data-types-in-javascript

Alert, prompt and confirm - 🔗 https://javascript.info/alert-prompt-confirm

Basic operators, maths - 🔗 https://javascript.info/operators

Comparisons -🔗 https://javascript.info/comparison

Logical operators - 🔗 https://javascript.info/logical-operators

The switch statement - 🔗 https://javascript.info/switch

Arrays - 🔗 https://w3schools.com/js/js_arrays.asp

Array methods - 🔗 https://dev.to/frugencefidel/10-javascript-array-methods-you-should-know-4lk3

Flow control - 🔗 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/if...else

Loops - 🔗 https://www.codecademy.com/learn/introduction-to-javascript/modules/learn-javascript-loops

Objects and Classes - 🔗 https://github.com/getify/You-Dont-Know-JS/blob/2nd-ed/objects-classes/ch3.md

Functions - 🔗 https://btholt.github.io/intro-to-web-dev-v2/functions-and-scope

Arrow functions - 🔗 https://wesbos.com/arrow-functions/

The DOM - 🔗 http://javascripttutorial.net/javascript-dom/

Prototypes - 🔗 https://tylermcginnis.com/beginners-guide-to-javascript-prototype/

ES6 Modules - 🔗 https://www.freecodecamp.org/news/how-to-use-es6-modules-and-why-theyre-important-a9b20b480773/