TTotal up the instances of items in an array.

TTagged template literals

ES6 TIP: Often forgotten Use tagged template literals to run a template string through a function.

UUtility Class

ES6 TIP: Create utility functions by using static methods, used without instantiating their class.

TTemplate literals

Template literals can be great for creating markup

cconsole.log passed function argument

ES6 TIP: console.log passed value, when using implicit arrow function return

IImplicit return object

ES5 ES6

EEnforce required parameters

OObject Literal console logs

ES6 TIP: Use object literal shorthand to quickly output a variable with a label in the console!