General Assembly Weeks 2 and 3
General Assembly Weeks 2 and 3
Weeks 2 and 3 were spent going over Javascript, and itâs relation to the DOM. At the start of week 3, we began our first front-end project.
Going into JavaScript, we started with OOP concepts. Which is a good first thing to learn in the context of how we will be using JS with full stack applications. The whole course is taught with the latest technologies so everything we will be writing is with the ES 6 syntax, again something I was already familiar with but going over the basics never hurts.
We started with the simple data-types, the values JS can remember. Javascript has the following data types.
the six primitive data types :
Boolean
Null
Undefined
Numberâââintegers, decimals, positive and negatives.
Stringâââa collection of characters
Arrayâââa collection of different datatypes in an order.
And the Object data type. (For more information on these read the MDN docs here.)
After going over the datatypes, the next step is to learn how to declare and initialize them. In JavaScript, this is done one step. A string, for example, is initialized and declared this way:
let myString = âthis is a stringâ;
in the first step, the string is initialized by âletâ and then declared to equal âthis is a stringâ. You also write this another by declaring and initializing on different lines.
let myString;
myString = âthis is a stringâ;
Flow is the core of programming. What does what, and when. All programming can be broken down into simples steps of testing the âstateâ of something and performing an action based on the test.
It is a simple series of steps that code follows to output a desired(or undesired) result. If this is true then do this, If this is false do this and look something like this. In JavaScript this is handled with if else statement and looks like this.
Let thisStatementIsFalse = false
if (thisStatementISFalse === true){
>>console.log(true)
}else {
console.log(false)};
output: false
Then went through the different loops in javascript. For Loops, and while loops (Iâve written an article on the simplicity of the single line iterary statement for loops).
Then came in the âswitchâ statements which handle what would be long lists of if-else statements. You can write them in such a way that runs until the first condition is met or runs all the conditions that are met. like bellow
switch(expression) {
>>case n:
>>>>code block
>>>>break;
>>case n:
>>>>code block
>>>>break;
>>default:
>>>>code block
}
After learning the JavaScripts basic we headed into Jquery. jQuery is a large library of code that gives the users special methods to manipulate the DOM with. It makes code read more like English and makes things that are very difficult in javascript to write less painful.
Finally, We prep for our first project. GA runs on agile and Scrum concepts. (Danny the instructor is actually a scrum master).
For the prep for our First Project, we learned to think out building a simple application.
Starting with Users stories.
I am familiar with users Stories from FCC(FreeCodeCamp)[https://www.freecodecamp.org/challenges/build-a-tribute-page]. We think about a userâs experience with our app. How they would interact with each aspect of the app.
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