Crow's Codes 002: JavaScript Objects

jeremycrow(55)

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Day Two in my one year quest to develop my coding skills. Every day during this challenge I will post at least one line of code that I've learned or worked on. I've been working through the free Codecademy course Introduction to JavaScript. Today I am exploring JavaScript Objects.

#CodingPhase #TheCodingWay #365CodingPhaseChallenge

My first task was to define a new object called fasterShip with two properties. This is the code I came up with:

let fasterShip = { 'Fuel Type': 'Turbo Fuel', color: 'silver' };

Next I was presented with the following code which defines an object with five properties:

let spaceship = {
  homePlanet: 'Earth',
  color: 'silver',
  'Fuel Type': 'Turbo Fuel',
  numCrew: 5,
  flightPath: ['Venus', 'Mars', 'Saturn']
};

The lesson had me assign the value of a property containing a number to a variable. This is the successful code I came up with:

const crewCount = spaceship.numCrew;

I was next asked to try assigning an array of strings to a variable. I accomplished this in the same way. My code was:

const planetArray = spaceship.flightPath;

I also learned how to access the value of a property within an object using square brackets. The following code is one example I wrote to access the color of the spaceship from the object definition above and assign it to a variable:

const whatColor = spaceship['color'];

I also learned that an object defined using const cannot be reassigned but it can be mutated (i.e. modified) to add, change or remove property values.

Also, if you assign a function as a value to a property within an object, that property is considered to be a method and can be utilized as such.

This is just a bit of what I learned today. If I documented all of it, I would never get through the lessons! Have a great day coding and I'll see you here again tomorrow. :)

If you enjoyed this record of my experience learning to code and want to follow along going forward, please consider adding me on Twitter and following my blog here on Steemit:
https://steemit.com/@jeremycrow