Updating new objects in Angular using JavaScript Object-Oriented Programming may not be working

Recently delving into OOP in JavaScript while working on an AngularJS website, I encountered a situation where my object methods were only altering the properties within the class, but not affecting the new object itself.

//Class
Var Item = function() {
  this.currentItem = 1;
}

Item.prototype.itemUp = function(){
  this.currentItem++;
}

//New Object
item = new Item();
$scope.currentItem = item.currentItem;
item.itemUp();

Upon some debugging, I discovered that the code was updating the `Item.currentItem`, rather than `item.currentItem` as desired.

console.log(item.currentItem) --> 1
console.log(Item.currentItem) --> 2

I am seeking guidance on how to ensure that the class method modifies the newly created object, and not the class itself. Any advice would be greatly appreciated!

Thank you,

Answer №1

Experiment with this code:

const newItem = new Item();
newItem.incrementItem();

The issue at hand seems to be that the variable item.currentItem is not a reference, but rather the actual numerical value.

Answer №2

Give this code a shot:

// Define Class
var Product = function() {
    this.productCode = "A001";
}

Product.prototype.incrementCode = function(){
    this.productCode = "A002";
}

// Create New Instance
product = new Product();
$scope.currentProduct = product;
product.incrementCode();

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