Exploring the power of the JavaScript this keyword

Can you explain the purpose of the line this.tasks = tasks; in relation to the constructor method?

class TaskCollection {
    constructor(tasks =[]) {
        this.tasks = tasks;
    }
}

Answer №1

When the constructor's tasks are passed in, they are assigned to the "tasks" member of the class instance.

To illustrate, it looks like this:

taskList = new TaskCollection([task3, task4]);

Subsequently, you can access these tasks with ease:

taskList.tasks // [task3, task4]

Answer №2

In JavaScript, there is no reserved word Class. Instead, the function TaskCollection defines a class-like structure. The following code functions correctly in a jsfiddle environment but requires clarification on what the tasks array represents and how the constructor keyword works.

function TaskCollection (name, tasks) {
        this.name = name;
        this.tasks = tasks;
}

var collection = new TaskCollection('col', ['task1','task2']);
console.log(collection.name);

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