As I delve into learning Javascript, I have encountered terms like factory functions and constructor functions in the realm of object-oriented programming. Despite my attempts to grasp the distinction between them, I still find myself struggling to fully understand. Are factory functions just regular functions, or am I missing a larger perspective here? Hopefully, my brief exploration of this concept sheds some light on these concepts.
Using the new keyword, a constructor function can be invoked. When new is used, JavaScript generates a new object and returns it.
let myConstructor = new ConstructFunction();
Here is its implementation:
function ConstructFunction() {
this.alpha = "one";
this.beta = "two";
}
A factory function can be called like any other regular function:
let objByFactory = someFactoryMethod();
And here is how a factory function can be defined:
function someFactoryMethod() {
let newObj = {
alpha: "one",
beta: "two",
someAction: function() {
/* function code goes here */
}
};
return newObj;
}
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