JavaScript: The Fascinating Parts
summary
Argues modern JavaScript is now respectable and gives concrete rules: use const over var (and prefer let to var), run eslint to enforce it, replace arguments with the rest operator to get a true array, use spread to copy objects instead of manual field copying (fixes DRY and open/closed), destructure arrays/objects and for...of entries to get indices cleanly, use default parameters and template literals for clearer APIs, and beware arrow functions because they lexically bind this and arguments so blindly converting functions can break behavior.
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chapters (10)
- 0:00The evolution of JavaScript
- 2:08Replacing var with let/const
- 6:09Understanding function arguments
- 11:14Rest parameters and syntax
- 15:21Spread operator and immutability
- 23:49Default parameters and values
- 29:14Enhanced for loops and destructuring
- 33:47Template literals and destructuring
- 37:33Advanced object destructuring
- 42:41Arrow functions and scoping
