Monday, March 3, 2014

Lines of HTML/ Typeof For Your Noggin

In case you don't do much internet, you'll know that Texas got crazy ice and frozen stuff. Good thing I have no where to go! I'm going to stay inside and get some solid study time in! Also, I found out how to do lines! No, not cocaine, HTML! You just use <hr /> who knew! Well, obviously a lot of people do, so... I know now! yeah, that's better.

Heh. Lines.

Today's music is... Electro Chill. I know, not very informative, but that's pretty much what it is. Anyways, I'm cold. So, I'm going to make some coffee and get a sammich, or something and then I'm going to plug in and plug away!






JavaScript




      Today, we're doing fun with functions. I know; lame play on words. If you can even call it that. Blame the class. They're the ones that used it. AAANYhoo, Here's a little something for you:

/*Add a speak method to the Person constructor. Whenever speak is called, it should print "Hello!" to the console.*/

function Person(job, married) {
    this.job = job;
    this.married = married;
    // add a "speak" method to Person!
    this.speak = function(){
        console.log("Hello!");
    };
}

var user = new Person("Codecademy Student",false);
user.speak();

Now, here's the thing; not all of that code applies to what they wanted me to do, but I think I can point out where and why you need it. This code is called a Constructor and we have a Method inside of it. Notice that there is the new Peron and the user.speak. They just wanted me to add the speak part. The whole function applies to user, but when you call a specific section like user.speak, it doesn't matter what else you have wrong as long as what you're calling is correct. Everything else applies to the variable user, and if I was to call that and anything was wrong, I would get errors.

     Woah. That was crazy. I'm always amazed when I know what they're talking about in the lessons. I figured it out with the hint, and usually those things are no help at all. This time I got it! I'll count that as a victory for me.

     Well, that was just stupid. Apparently, the lesson has a bug, and the devs don't seem to care to fix it. The forum was filled with people that couldn't figure it out. So, I posted the working code that I found/figured out in the forum. Hopefully that'll help some people.  Definitely a WTF moment.

     And, last, but least, I leave with a new built-in operator. <typeof>  //angel voices
It's actually really helpful! Here's Mozilla's definition on it: "The typeof operator returns a string indicating the type of the unevaluated operand." Basically, if you don't know what type of code you're dealing with, you use typeof, and there you go! it'll tell you!

     There you have it, folks! a whole bunch of .js. for your noggin. I'm still getting through the HTML. The only new thing I've learned is the <hr /> thing that makes a line. I'll see y'all on Wednesday! Hopefully the ice will be gone.

--Martin

Friday, February 28, 2014

Links/Do You Even Do Age, Bro?

  Today, as I'm sure the job-weary are aware, is Friday! And that means I'm at the coffee shop! I had a big frappé, and it was delicious! Now to capitalize on this energy! As I said in the last post, I finished the HTML course(olé!) and this has a good side and a bad side. The good side is that I am happy with what I learned, the bad news is that in the next course HTML course that I'm taking starts with the basics. While I appreciate going over the fundamentals, it means that I really don't have anything HTML/CSS related to report today. Bear with me while I slog through and get to a place that I don't know about. I should have something by Monday unless they really want to explain elements, or something along those lines. The new course is on Udacity (<<--link)for those of you looking for a place to learn HTML. They don't cover CSS, sadly. I'll have to look for somewhere that does. Now that the frappé has been imbibed, and Grooveshark is going(again). It's time to plug in and plug away!



JavaScript




      Today we're going to be writing a validation script. It's going to check if a person(under the premise that they're being honest) is old enough to enter a website. It's about 8 lines of code, but it really shows how much you can do with just 8 lines of code in .js. We start off with this:

var userAge = parseInt(prompt());
Notice the new word: parseInt; it's a fairly obvious term. The variable <userAge> returns a string, so rather than setting userAge equal to the prompt, you put a function around the prompt that will return the value that prompt() gets from the user into a number, and that means you parse an integer with <parseInt>! pretty nifty, eh? I thought so.

Next up we have this:

if(isNaN(userAge)){
    console.log("Not a number,bro.");
}

It's checking to see if the response wasn't a number. ParseInt can only turn a string into a number if it is a number, obviously. So, you make an <if/else> that makes sure that the person entered what was wanted. This is a good practice for pretty much anything ever when it comes to this kind of thing.
You should also notice the use of <isNaN>. isNaN stands for is not a number. Like many things in .js there are tons of these little words that are so useful, and this is definitely one of them. So, next time you need to have something that checks if something is returning a number, it's <isNaN> to the rescue! You just stick your parameter in there, userAge in this case, and it's good to go.

The next step is a simple < else if/else> setup:

else if(userAge<18){
    console.log("You're not allowed in here, young whippersnapper!");
}else{
    console.log("Come on in!");
}

That pretty much explains itself, so here's the whole script:

var userAge = parseInt(prompt("Do you even do age, bro?"));
if(isNaN(userAge)){
    console.log("Not a number,bro.");
}else if(userAge<18){
    console.log("You're not allowed in here, young whippersnapper!");
}else{
    console.log("Come on in!");
}

That should be enough info to take in for now. I hope y'all have an amazing weekend, I'll see you on Monday! It might be a late post, it's possible I'll have a million things to do. See y'all!

--Martin

Wednesday, February 26, 2014

I Finished the course!/.js is still a-happening.

     I already know that this is late because I'm writing the intro last. What, I can do that. It's called mixing things up. I do that sometimes. The good news is that I finished the HTML/CSS lesson! Olé! The boring news is that I still have a ways to go with the .js. Not really sure that's boring since that just means I'll be learning a lot more new things. Learning new things is always fun. So, I take the back the boring other news is that .js is still going on.  Ye olde(See, I did it again!) grooveShark is still blazing away. No coffee today. Just pure gumption over here! Time to plug in and plug away!

HTML/CSS


     Working away ye olde(I say ye olde too much) HTML/CSS again. Remember that website about an angry puppy from a while back? right around when I started CSS. They had me build it now. Which was weird, because; I knew what they were talking about! Whaaaaat?? That is just weird. The play on words was delightful. I'm working on positioning(still) and I am using it to make a "resumé" and they said how to "position" yourself. I laughed. Good grammar and a funny play on words is always delightful. Today was review. Lots of review.
     And now I know why! I'm done the lesson! Good thing I've got plenty of classes elsewhere that use HTML.


JavaScript


     First up are the notations. I've already gone over them, but today's theme seems to be review.
First there is Literal notation. "Literal notation creates a single object. It uses curly brackets { } and the object's default properties are defined within the brackets using <property:value> notation.
I find this to be the quickest when it applied to a small number of elements.

     Second is the Construction notation. "Constructor notation involves defining an object constructor. And like defining a function, we use the function keyword. You can think of this constructor as a "template" from which you can create multiple objects. To create a new object from a constructor, we use the new keyword."
I use this one when you have multiple elements with same properties.  For example:
//this one is the Construction notation.
var james = {
    job : "programmer",
    married : false
 
};
//This one is the Literal notation.
function Person(job, married) {
    this.job = job;
    this.married = married;
}

var gabby = new Person("student",true);

     See how many lines of code are needed in a Construction notation for one Object?
The Literal notation has more lines of code up front, but then you're able to add more in one line later on. The Construction notation has its uses, but, usually, in a more singular case. I say usually, because; everyone has their own way of doing things, and I'm sure that for some people, the Construction notation is their go-to trigger. My go-to trigger is my laptop. I found my old laptop, which means that I might be talking about a game soon. It's running ElementaryOS. I think I'll try and get Sublime Text or something along those lines and take a crack at it. That's all for today, folks! See y'all Friday!

--Martin

Monday, February 24, 2014

500, What?/Nothing Of Importance.

     It's Monday. Again. It keeps happening, man! No matter what I do, there's Monday! No-one gets away from Monday. I've had my coffee, but I'm still exhausted! I can barely keep my eyes open! I'll try to get this thing going quickly. Sound City is playing from G music. "From Can To Can't" is my favorite song in the album. Now, time to plug in and plug away!


HTML/CSS




      It seems that I've done 500 lessons! That's nifty. The lesson says I'm about 70% complete with HTML/CSS. Again, that's nifty. Really, I need to find out how to make a game with my new-found powers. Right now I'm working on positioning. Working with Margin, Padding, Border, and Content; you get abbreviations like 'TP' 'TM' 'TB' The 'T' stands for 'Top' the other are: 'Padding', 'Margin', and 'Border' respectably. I've already worked with margin somewhat, you have: auto, but you can also do something like:

div { 'margin-top: 5px; margin-right: 10px; margin-bottom: 5px; margin-left: 10px;}

Or, you can do:

div{margin:5px 10px 5px 10px;}

it's the same thing. You would use the first example when you're trying to specify less than all of the aspects of a tag's properties. Maybe just the left and the right, or something similar.
      You also have the same thing with Padding. You can also use negative positioning. Such as: div{margin-left:-20px;} instead of moving the object twenty pixel's worth to the right from the closest border, it would move it 20 pixels closer. Maybe even past it.
      Then there's float. You can move that left or right. Unfortunately, sometimes large floating elements get mixed with non-floating ones, and elements do end up on top of each other. To combat this, you use <clear> you can clear left, right, or both.
      If you don't specify an element's positioning type, it defaults to static. This is when you use <position>. You have absolute, which means that it's going to stay the same distance from its first parent element it has that doesn't have position: static. If there's no such element, the element with position: absolute gets positioned relative to <html>.
      Relative is another term, but also more straightforward: it tells the element to move relative to where it would have landed if it just had the default static positioning.
      Finally, we come to fixed positioning. Fixed anchors an element to the browser window; you can think of it as gluing the element to the screen. If you scroll up and down, the fixed element stays put even as other elements scroll past. Hipster websites loved that trick for while there.


JavaScript




      Nothing of importance to report on this one. I'm working away, but it's just reinforcement. I'll have more on Wednesday. See y'all then!

--Martin

Friday, February 21, 2014

Groovy, Man!/ Friends In Address Books

     Here I am at the coffee shop once again. I've got GrooveShark going. Click the link for the playlist that I'm playing. I've been on this one for a while, and I still like it! Always a solid electronic song going on. I've had a latté, I may get a regular coffee at some point to keep my eyes open. Friday being its usual self, I'd rather get this over quickly, but I need to put some time in. So, time to plug in and plug away!


HTML/CSS





      I'm sorting my friends! It feels a bit like circles in g+. They're even using Google colors. Anyhoo, it's the CSS I'm looking at. they pretty much don't care to teach you how to make a circle border. It's just there. Seriously. Don't just throw things at me, tell me what they are! Good thing ye olde Personal Initiative is still around.
div {
display: inline-block;
margin-left: 5px;
height:100px;
width:100px;
border-radius:100%;
border:2px solid black;
}
And that's how to do a circle border.
Now they teach me something cool. You can have an <id> and a <class> in the same tag. That is definitely nifty! Lots of uses for that. And I finished. That was quick. Looks like we're about to get into this:

I'll continue with that in the next post.












JavaScript




      Isn't it funny how normal it can become that a single letter being incorrectly capitalized eventually is not so stupid any more? It's perfectly logical that the computer would have a binary (heh. I made a play on words) track. It's either right, or it's wrong. There is no such thing as close. That's totally normal for me now! How strange... The Address Book of happening is still happening. I was trying to get it to print out a return on a search and it just wasn't working. It wasn't until I hunkered down and really scrutinized the code that I discovered my error. A lower-case 'l'. How thoughtless of me. I shall endeavour a better attempt at correct grammar today. After smashing my way Neanderthal-style through the lesson I moved on to adding more people in an easier method.
Starting off with this function:

var add = function(firstName,lastName,email,phoneNumber){
    contacts[contacts.length] = {
    firstName: firstName,
    lastName: lastName,
    phoneNumber: phoneNumber,
    email: email
};
It allows for any additions to be done with one line of code like this:

add("Mookie","Chess","example@example.com", 9003006000);

It doesn't print anything, it just adds that person to the address book. In order to see if actually worked, we use this:

list();

If you recall, that was part of the earlier code.
Turns out, it actually has a use.
And project Address Book is complete!










Olé!
Now it is time to bid you adieu. See y'all on Monday!

--Martin

Wednesday, February 19, 2014

Headway/Nothin much.

     Well, I have a donut, a coffee, some random music, it's time to plug in and plug away.

HTML/CSS



     Nothing of any interest to report on this front.

JavaScript



      Hey, it's the .js time! I actually made some headway!  Olé!
I am still on Objects! What? Yup. Still working on ye olde Objects... BUT the good news, as I said, is that I made some headway! I finished a 33 section chapter today, and in the last section, I did in one try, and knew what I needed to do! So, yay for that! And now onward to the next ones. I am now working on this: var bob = {
    firstName: "Bobi",
    lastName: "Jones",
    phoneNumber: "(650) 777-7777",
    email: "bob.jones@example.com"
};

var mary = {
    firstName: "Mark",
    lastName: "Johnson",
    phoneNumber: "(650) 888-8888",
    email: "mary.johnson@example.com"
};

var contacts = [bob, mary];

function printPerson(person) {
    console.log(person.firstName + " " + person.lastName);
}
var list = function(){};
var contactsLength=contacts.length;
for (var i = 0; i<contacts.length; i++){
    printPerson(contacts[i]);
}
Here's the thing, half of that code isn't needed. Like the array <contacts>, take it out and it still works just the same. Am I missing something here? I feel like I'm missing something here.

Monday, February 17, 2014

Beautiful Weather/ Not A Walk In The Park

     It's a beautiful day here in Texas. I had to take a break from my studies and go for a walk to enjoy this gorgeous weather. One of my friends told me that Katie Herzig was giving all of her music away for free today. So, that's what I was listening to. It was pretty good. I actually got my studies on a roll today. So, this is actually going to go out on time! No coffee today. I'm awake enough from all the amazing weather. So, time to plug in and plug away!


HTML/CSS






      I've been doing HTML just long enough for that picture to make my eye twitch just a little. Ever since I started learning HTML I've been writing these posts in HTML and I'll get little error messages if a tag isn't closed, or something. So, I'm more perceptive to tags lately. Mainly because I don't like the error messages. I'm pretty sure that I don't really care for the <nth-child> tag when it comes to calling a specific element. I mean, what's wrong with class or id? Although, I suppose that maybe some tags can't have those in there. So, maybe that's when they're useful. Hopefully.
I earned a badge! Olé!





JavaScript




      JavaScript. So useful, and yet so daunting. I seriously need to start doing some real world applications to have some real knowledge under ye olde metaphorical belt. I have the most basic ideas of .js, but some of the more esoteric practices can be overtly foreign on such a frequent basis that the only way to retain knowledge is to do the lessons over and over and over and over... As long as it actually helps me attain something in the end, I suppose it's worth it. The code that I'm starting with today is pretty much just simple math. Which should be easy, except that it isn't always easier said than done











 If you want to do cool code snapshots like this, go here.  It's called Marmoset.
      Anyhoo, the age bit was OK. I just had to do an <if/else> statement. Although, I'm sure I could do a ternary operator and have it all done better. I'll try that next time I need an <if/else> statement.
Seriously, remembering the names to these things can be hard! I tried three different ways before I got this. Like I said. remembering things in .js is hard sometimes! Remembering all the operators and objects and whatnot. I'm going to eventually remember them all, but it isn't exactly a walk in the park. Not that anyone said it would be. OK. That's the end for today.
See y'all on Wednesday!


--Martin