Did you know you can declare number values in JavaScript with notation like 1_000_000? This is especially useful for large numbers where you might be used to seeing commas within the number to help readability (but commas themselves are invalid). It’s perhaps even more useful when declaring numbers in binary, hexadecimal, or BigInt notation.
“Reactivity” is how systems react to changes in data. There are many types of reactivity, but for this article, reactivity is when data changes, you do things.
I took a shot at coding TodoMVC with modern (ES6+), vanilla JavaScript, and it only took ~170 lines of code and just over an hour! Compare this to the old/official TodoMVC vanilla JS solution, which has over 900 lines of code. An 80%+ reduction in code! I ❤️ the new state of JavaScript. The code has received […]