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Learn Coding Basics in JavaScript

Solution: Objects

Review possible solutions to the tasks for the objects challenge.

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Solution 1

Here is a possible solution for adding and removing items from a list object.

Javascript (babel-node)
const myList = {
    items: [],
    add(item) {
        this.items.push(item)
    },
    remove(item) {
        let index = this.items.indexOf(item)
        if (index !== -1) {
            this.items.splice(index, 1);
        }
    }
}
// Adding to the list
myList.add('Apples');
console.log("Adding Apples to the list: ", myList.items)
myList.add('Bananas');
myList.add('Oranges');
console.log("Final contents of the list: ", myList.items);
myList.remove('Bananas');
console.log("After removing Bananas the list is: ", myList.items);

Explanation

  • Lines 1–2: The myList object is created with an empty items array.

  • Lines 3–5: The function add() is used to add an item to the items array. When called, it pushes the provided item to the end of the array.

  • Lines 7–12: The method remove() ...