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JavaScript

Posted by Lana Toogood
Lana Toogood
10,158 Points

calling object literal methods

Hi, as a small project, I'm trying to build an online shop using only html, css and javascript. The code below is to create a new Item (class Item on a different script) and add it to the stock array. I'm new to OOJS, and when I run this code, I'm getting "Uncaught TypeError: createNewItem is not defined". I think there is a core concept here I'm not understanding. Help much appreciated!

const store = {
    stock : [],

    createNewItem: function(name, description, itemNo, size, price, imgURL){
        const newItem = new Item(name, description, itemNo, size, price, imgURL);
        return newItem;
    },

    addItemToStock: function() {
        this.stock.push(this.newItem);
        console.log(`${item} added to stock`);
        console.log(this.stock);
    },
}

createNewItem('fluffy jumper', 'rib roll pink', 004, 'S', 55, '../img/samples/img4.jpg');
addItemToStock();

1 Answer

scribbles
scribbles
21,173 Points

Since you have 'createNewItem' as a method inside of the store object it would be called like this:

store.createNewItem('fluffy jumper', 'rib roll pink', 004, 'S', 55, '../img/samples/img4.jpg');

Also this.newItem will be undefined in the 'addItemToStock' method unless it is stored on the store object:

const store = {
    stock : [],
    newItem: {},
    createNewItem: function(name, description, itemNo, size, price, imgURL){
        this.newItem = new Item(name, description, itemNo, size, price, imgURL);
    },

    addItemToStock: function() {
        this.stock.push(this.newItem);
        console.log(`${this.newItem.name} added to stock`);
        console.log(this.stock);
    },
}

store.createNewItem('fluffy jumper', 'rib roll pink', 004, 'S', 55, '../img/samples/img4.jpg');
store.addItemToStock();
Lana Toogood
Lana Toogood
10,158 Points

Perfect, thanks so much for your help!