Discussion on: 5 Programming Patterns I Like

View post

Replies for: Personally, my favorite way to do JavaScript switches is to isolate them to their own function. If you're doing a simple dispatch, a function is al...

Example with no object creation in the function:

// Object literal
const createContent = function(contentType){
   const contentTypes = createContent.contentTypes;
   const createType = contentTypes[contentType] || contentTypes.default;
   return createType(); // or new createType() if its a class constructor
}
createContent.contentTypes = {
  post: Post,
  video: Video,
  default: Unknown
};

Eduardo Cancino • May 28 '19 • Edited

I love this solution, very simple;

I usually do this:

const  fromTypes = (types, def = null) => type => (types[type] || def)

const createContent = fromTypes({ post: Post, video: Video }, Unknown)

createContent('post')

Jay Tailor • May 29 '19

This is how redux architecture works ;)