Some plain JavaScript tips that you may didn't know.

• Array with unique values
• Destructuring into properties
• Destructuring with default arguments
• Enums via proxies
• Flattening Array
• Function Caller
• Function Properties
• Immutability
• Merging Objects
• null vs undefined
• Password Generation
• Replacing switch statements with Object literals
• Tagged literal
• Voice Recognition

• 15 HTML element methods you’ve potentially never heard of
• How to sort strings in JavaScript
• JavaScript patterns: Throttle and Debounce
• Little known features of JavaScript

In case you have doubt why I'm not using semicolon is because I got inspiration from these talks:

• Are Semicolons Necessary in JavaScript?
• Semicolons cannot save you!