kattak

*Conferences 2020*
- Write/Speak/Code
- React Conf

- RailsConf 2019
RailsConf 2020 will be in Portland, OR from May 5-7! See you there!!

Reactathon 2020
Mar 30 – 31, 2020

kattak

1. Where do I get started? Or, I just finished a session, how do I look up x topic?

• Prefer videos? Udacity's free and excellent Technical Interviewing course (https://www.udacity.com/course/technical-interview--ud513) (2.5 hrs)

• Prefer reading? Bradfield's free and excellent online book (https://bradfieldcs.com/algos/)

• Prefer reading 2.0 ? Eloquent Javascript's free and excellent online book (http://eloquentjavascript.net/) with interactive codeboxes

• Suitable if you're learning how to code && developing your algorithmically-thinking skills at the same time

• Prefer visualizations? Vaidehi Joshi at BaseCS (https://medium.com/basecs) writes excellent weekly blog posts - her notes are colorful and help you visualize.

kattak

Hi everyone, Thanks for a lovely and productive session this week.

Covered -

Dynamic Programming

0. Find max of array

1. Stock price: https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/

kattak

Sift Science

1. Do more in componentDidUpdate

• imperative vs. declarative
• imperative: how you want to achieve
• declarative: what you want to achieve

Declarative - often seen with:

• i.e. promises
• immutable objects

kattak

Two principles of Redux: (1) the single immutable state tree (2) the state tree is redundant

1. The Single Immutable State Tree

• Represent the whole state of app as a single JS object
• All changes and mutations to state are explicit
• State or state tree: everything that changes in your app is contained in this object

2. The State Tree is Redundant (?)

• Dispatch an action: change the state
• Rec: use strings because they are "surorizable" (serializable?)

kattak

April 22, 2017

Recreating RSpec

Idea from WAT guy

describe MeetupUser do
...
end 

kattak

Algorithms/Technical Interviewing Workshop - March 13, 2017

Women Who Code - East Bay Gist link bit.ly/wwcberkeley

What is the Algorithms/Technical Interviewing Workshop?

Every two weeks, I lead technical interviewing/algorithms workshops with Women Who Code - East Bay. The workshops are held every other Monday at NextSpace, right next to downtown Berkeley BART. For more information or to sign up, visit the Women Who Code East Bay Meetup page.

1. Introduction & overview

People are working on games, image processing, nails, leading workshops, and React.

kattak

Thinking in React

Notes from reading: https://facebook.github.io/react/docs/thinking-in-react.html

Big idea implementation:

1. Break UI into component hierarchy

   • Child components should be children in hierarchies

2. Build a static version

kattak

React's Virtual DOM

-One reason React is so fast

Why are UIs difficult to build?

• Humans are in a loop
• Hard to test, doesn't look/feel right when there's a bug
• Lots of state, seems simple to user, but lots of complexity under the hood
• Tooling mismatch: front-end tools not as good as back-end

Thoughts:

kattak

Linked Lists

What is a vector?

std::vector

• One dimensional array

Pointers

Expanding Vector Example

• Cache efficiency of a vector