LookUp Table Pattern Javascript

The LookUp Table Pattern is a design pattern that can be used to map keys to corresponding values. This is particularly useful when we have a large number of keys and want to quickly retrieve the corresponding value.

In the context of JavaScript, a LookUp table can be implemented using an object literal, where the keys represent the keys of the table and the corresponding values represent the values. This way, we can quickly retrieve the corresponding value for a given key.

For example, imagine we have a list of fruits and need to categorize them as sweet or citrus. We can create a LookUp table that maps the fruits to their respective categories. This allows us to quickly categorize a fruit, instead of writing a large number of if/else or switch/case statements.

Moreover, using a LookUp table makes our code more readable and easier to maintain. We can easily add new keys and values to the table without having to modify the function logic.