objects can be used instead of conditionals and switches

pojo-to-replace-conditional.js

/**
 * This is an object
 * where we can store methods
 * that are accessible with a string
 */
var conditional = {
   
   humanities: () =>
      '2',
     
   socialSciences: () =>
      '1'

}



/**
 * This is our public-facing api
 * that uses object rather than
 * an if or switch statement
 */
var api = {

   findDepartmentNumber:  (value) =>
      conditional[value]

}