When deciding which method to choose, object type should be taken into account.
How to remove falsy values or only some falsy values.
Learn methods for searching an object and its prototype for the existence of properties.
Using the insertAdjacentElement() or insertAdjacentHTML() methods.
Using 'var' to declare variables can lead to scope leakage and silent errors in your code.
Emptying an array is easy, but methods vary in their impact on references made to the array in other
Get the index value of any element in an array by value and instance of its appearance.
Self-executing functions are ideal for making a one-time process self-contained.
Use flexible higher-order array methods to help achieve your programming objectives.
Arrow functions use efficient syntax but are best avoided when using "this"