Question

Can I put similar methods in an associative aray like this?

var function_hold = {   
  function1: function(){}
  function2: function (){}
 };

If not,

How do I group similar methods?

Answer 1

Similarly as you would with any other object-oriented programming language, you group functionality in objects. This works in JavaScript as well.

Your code actually creates an object. Alternatively you can use JavaScript’s prototype mechanism.

var Person = function(firstname, surname){
    this.firstname = firstname;
    this.surname = surname;
}

Person.prototype.getFullName = function(){
    return this.firstname + " " + this.surname;
}

You then call it like

var tom = new Person("Tom", "Jackwood");
tom.getFullName();