@rkenmi - Search Results

Web Development 101

... XML schemas to maintain. Resource based. Simple to understand. Only 4 HTTP Verbs (GET, POST, PUT, DELETE) and the URI resource path is needed to understand what the general behavior will be.

November 9, 2017

Storing passwords into a database

Don'ts Don'ts Don't put raw passwords in the database Don't put encoded passwords in the database (i.e. Base64) Don't put simple hashed passwords in the database (i.

January 30, 2021

JVM Java is a statically typed language that is compiled into bytecode (i.e. with javac) and understood only by the JVM, or Java Virtual Machine. The JVM is an interpreter that reads the Java bytecode and translates them into machine code before execution.

March 29, 2019

Scanning for memory addresses with Cheat Engine and ZSNES

Cheat Engine (CE) is an open source memory scanner/hex editor/debugger that works for Windows applications. Another way to put it is that CE is used to explore the memory that is dynamically allocated (by Windows) in games.

July 4, 2017

4 Line Depth-first Search

Context Depth-first search (DFS) is a common searching algorithm for graphs, alongside Breadth-first search (BFS). DFS is useful for finding ways to solve mazes. It is also a vital ingredient for topological sorting.

May 7, 2017

String Manipulation in Python 3+

There are a few ways to search for a string in Python (3+): String operations str.find(sub[, start[, end]])] "shadow walker".find('w') => 5 This gives you the index of the first match. While the index might be nice to have, do remember that strings are immutable.

October 24, 2017

Virtual Memory

What is Virtual Memory? Virtual Memory is best described as a swap file on your hard disk that holds memory information for your running applications. Memory is structured and managed in two different ways; paging and segmentation.

September 27, 2020

Misconceptions of Software Engineer interviews at FAANG

There are already so many articles and Quora/Reddit/Blind posts out there on how to interview prep to get into big companies. So instead of covering that in detail, I want to focus more on the angle of common misconceptions.

August 15, 2020

React HOC vs. Hooks

HOC React HOC (Higher Order Components) are basically a function that takes a component and returns a new component. props are passed in as an argument to this function. React HOCs are generally used for: Components that share a common layout Components that need to be connected to some middleware (i.

July 6, 2020

Bloom Filter

A set data structure uses a hashing function to store values and to verify if a value exists. Bloom filters are similar in that it uses multiple hashing functions to store values and to verify if a value exists.

October 14, 2019

Seattle Conference on Scalability: YouTube Scalability

Notes Apache isn't that great at serving static content for a large number of requests vs. NetScaler load balancing Python is fast enough There are many other bottlenecks such as waiting for calls from DB, cache, etc.

December 25, 2020

Mutual Funds vs. ETF

Open-ended Mutual Fund The fund manager registers their fund to the SEC The fund manager markets the funds to bring in more investors/shareholders Shareholders can buy and sell shares directly with the fund manager The fund manager takes 1% of total earnings as management fees * The fund manager has to keep some money on-hand if the shareholders want to sell their shares back (i.

January 29, 2021

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