JavaScript Patterns 4.9 Configuration Objects

Configuration Objects

Passing a large number of parameters is not convenient. A better approach is to substitute all the parameters with only one and make it an object. 

var conf = {

    username: "batman",

    first: "Bruce",

    last: "Wayne"

};

addPerson(conf);

 

Pros	Cons
• No need to remember the parameters and their order • You can safely skip optional parameters • Easier to read and maintain • Easier to add and remove parameters	• You need to remember the names of the parameters • Property names cannot be minified

 

This pattern could be useful when your function creates DOM elements.

 

References: 

JavaScript Patterns - by Stoyan Stefanov (O`Reilly)