In addition, objects are dynamic and can be modified easily. This makes them ideal for use in web applications where data is constantly changing. Objects also allow for the creation of complex data structures, such as nested objects, which can be used to store and manipulate data in a more efficient manner. Finally, objects are easy to use and understand, making them a great choice for developers of all skill levels.
When creating objects, it is important to remember that the key must be a string, number, or symbol. If you try to use a variable as a key, it will be converted to a string. Additionally, the value can be any type of data, including objects, arrays, and functions. It is also possible to nest objects within other objects, allowing for complex data structures.
car.colour = "blue";
car["model"] = "Honda Civic";
car.colour. We could then store this value in a separate variable using the equal sign. For example
let carColor = car.colour;. We could also do something else with the value, such as log it to the console.
Looping through an object allows you to iterate over each of its properties. The most common method for looping through an object uses the for…in loop statement. This statement iterates through each property with in an object and allows you to access both its identifier and value using the syntax objectName[key] and objectName[value] respectively.
It is important to note that the for…in loop statement will iterate through all enumerable properties of an object, including those that are inherited from its prototype. To avoid this, you can use the Object.keys() method to return an array of all the object’s own enumerable properties. You can then use the for…of loop statement to iterate through the array and access the object’s properties.