elenawalom

First, check to see if the folder that you want to create already exists using 'ls'.

ls

pushd pwd mkdir clear (cmd+k) cat

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This is a block of text

    #!This is a block of code

This is a github highlighted codeblock

#

elenawalom

tl;dr: Ruby Arrays,

Objectives:MVC & Testing , Arrays & Functions ,Networking & HTTP

Ruby "Strings" vs. [Arrays]

array: an Object with ordered storage container

```Ruby names = ["Travis", "Megan", "Tod", "Bryan"] #literal array- what you see is what you get, also json (JS object notation)

elenawalom

#Homework for June 18, 2013

##Calculator 1 Create a command line calculator. It should have a basic and advanced mode.

basic calculator (+, -, *, /) advanced calculator (exponents, square root)

For a basic calculator, press 1.

elenawalom

#Homework for June 18, 2013

##Calculator 1 Create a command line calculator. It should have a basic and advanced mode.

basic calculator (+, -, *, /) advanced calculator (exponents, square root)

For a basic calculator, press 1.

elenawalom

9:15 Homework
10:00 Arrays
10:30 Break
10:40 Loops
12:15 Lunch
1:15 Hashes
2:45 Break
3:00 Lab

elenawalom

9:15 Homework
10:00 Arrays
10:30 Break
10:40 Loops
12:15 Lunch
1:15 Hashes
2:45 Break
3:00 Lab

elenawalom

Array, hash or string

In documentation, you're likely to see a has listed as hash. Arrays will often be called a. Keys will often be listed as k. 

m + n

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Array, hash or string

In documentation, you're likely to see a has listed as hash. Arrays will often be called a. Keys will often be listed as k. 

m + n

elenawalom

The first thing that really surprised me today was the flexibility of Ruby's shovel operator, <<. A student in the class had tried the following:

a = [0]
a << a

What do you think a is now? I was sure it would be [0, [0]]. But lo and behold, Ruby sparkles;

a = [0]
a << a