Learn to code in 60 seconds #programming #computerscience #python #khanacademy

less than 1m read

·Nov 10, 2024

Learn to code in 60 seconds. A program is a coded set of instructions for a computer to execute. Programs manipulate data, which come in several data types: integers, that's whole numbers; floats, have decimal points; booleans, true or false; and strings, of characters (don't forget the quotation marks).

Need to store a piece of data for later use? A variable names its location and points to it. Have a bunch of data? Organize it with a data structure. Lists store data in an ordered sequence, but we start counting at an index of zero. Dictionaries associate each piece of data with a key for easy lookup.

To make decisions in a program, ask a question with a Boolean expression. Then, choose which path to take with an if statement. To repeat a code routine, use a loop. A while loop repeats until the answer to your question becomes false. A for loop repeats a fixed number of times.

Have a lot of code? Break it down into smaller tasks with functions. Customize the function with input arguments and call the function to execute its task. Did you catch all that? Take it at your own pace with Khan Academy's intro to computer science course.

Follow a Transgender Teen’s Emotional Journey To Womanhood | National Geographic

shower thoughts that could end quarantine..

View All

Uncle Tom's Cabin part 3

Hey Kim, hey Becca. So, we’ve been talking about Uncle Tom’s Cabin, uh published in 1852 by Harriet Beecher Stowe, and said to have been one of the main causes of the American Civil War. So remind me again what Uncle Tom’s Cabin was actually about. So, U…

3d curl intuition, part 1

Hello everyone. So, I’m going to start talking about three-dimensional curl, and to do that, I’m going to start off by taking the two-dimensional example that I very first used when I was introducing the intuition. You know, I talked about fluid flow, and…

Warren Buffett Just Made a Huge $6.7B Investment.

Over the past few months, Warren Buffett has been hiding something: a secret stock, a secret position that was deliberately not disclosed to the public in his periodic 13F filings. And the SEC let him do it. They gave Buffett permission to buy up a stock …

Progressive Aspect | The parts of speech | Grammar | Khan Academy

Hello, grammarians! Let’s talk about the progressive aspect. So, we talked about the simple aspect as something that is just the most bare form. It’s what you see here: I walk, I will walk, I walked. But aspect allows us to talk about things that are on…

Is Success Luck or Hard Work?

During the COVID lockdown, this headline went viral: “Nearly half of men say they do most of the homeschooling… …three percent of women agree.” I bring this up not to debate who’s right, but because it’s a great example of something called egocentric bias…

Story time: EXACTLY how I met my three mentors

I’m going to share the three people who have made the biggest impact on my life, who have been my mentors, exactly how I met them and how that happened. So let’s start here; we’re going to go old school. My first mentor I met when I was about 13 years ol…

Learn to code in 60 seconds #programming #computerscience #python #khanacademy

More Articles