Introduction to JavaScript

Agenda

Objectives

Data Types, Built-In Functions, & Methods

For Loops & the Accumulator Pattern

Q & A

Objectives

Use variables, for loops, arrays, objects, and basic
String & Number methods

Describe some of the different
data types in JavaScript

Describe & implement the accumulator pattern

LET'S HACK STUFF

repl.it

Go to repl.it and type in JavaScript

Copy the following into the box on the left
and then hit run (or Command + Enter)


    console.log('Hello World!')

Data Types

Programming languages rely upon a variety of data types to perform all kinds of computations

Together we'll cover the following:

  • Numbers
  • Strings
  • Collections (i.e. Arrays, Objects)

Built-In Functions & Methods

Functions are blocks of code that can be reused

Methods are functions that are associated
with an object

Numbers, Strings, and Arrays all have methods
that can be called on them

JavaScript has some methods built-in and other functions we will need to write ourselves.

BREAK

For Loops

What if we have a list where
we don't know the length?

For Loops allow us to make multiple
iterations over a list

You'll find them in all kinds of languages,
including JavaScript

Accumulator Pattern

Patterns give us more tools to solve
complex problems we come across

Learning a programming language is
like learning a speaking language

In this language, we typically write outside-in

Objectives

Use variables, for loops, arrays, and basic
String & Number methods

Describe some of the different
data types in JavaScript

Describe & implement the accumulator pattern

Basic Training (Intro to JavaScript)

By Wes Reid

Basic Training (Intro to JavaScript)

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