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    Home Unlabelled Happy New Year fireworks: 60 lines of pure JS code - easy tutorial learn programming

    Happy New Year fireworks: 60 lines of pure JS code - easy tutorial learn programming

    January 01, 2019

    Happy New Year fireworks: 60 lines of pure JS code - easy tutorial learn programming

    Happy New Year fireworks: 60 lines of pure JS code - easy tutorial

    Posted: 31 Dec 2018 05:25 AM PST

    Are there any self-taught female programmers out there?

    Posted: 31 Dec 2018 07:45 PM PST

    I've been self-studying here and there, but I frequently feel discouraged because I don't come across many self-taught female programmers. I see plenty of self-taught males and many of them are very successful and they give great advice, but not seeing many females around makes me worry that self-taught females might not be as successful as males in getting jobs without a CS degree or a degree at all.

    This might seem like a silly question but this just lingers in the back of my mind too often that I just have to ask.

    submitted by /u/introverted_rabbit
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    The Annotated Turing: A Guided Tour Through Alan Turing's Historic Paper on Computability and the Turing Machine by Charles Petzold

    Posted: 31 Dec 2018 06:49 PM PST

    Programming Legend Charles Petzold unlocks the secrets of the extraordinary and prescient 1936 paper by Alan M. Turing. Mathematician Alan Turing invented an imaginary computer known as the Turing Machine; in an age before computers, he explored the concept of what it meant to be "computable," creating the field of computability theory in the process, a foundation of present-day computer programming.

    The book expands Turing's original 36-page paper with additional background chapters and extensive annotations; the author elaborates on and clarifies many of Turing's statements, making the original difficult-to-read document accessible to present day programmers, computer science majors, math geeks, and others.

    Interwoven into the narrative are the highlights of Turing's own life: his years at Cambridge and Princeton, his secret work in cryptanalysis during World War II, his involvement in seminal computer projects, his speculations about artificial intelligence, his arrest and prosecution for the crime of "gross indecency," and his early death by apparent suicide at the age of 41.

    https://www.goodreads.com/book/show/2333956.The_Annotated_Turing

    I heard about this book while watching "Uncle" Bob Martin - "The Future of Programming", https://youtu.be/ecIWPzGEbFc

    submitted by /u/malberinfotech
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    They say that "programming is more about reading code than writing it". What code then should I read considering I am self teaching and working alone?

    Posted: 31 Dec 2018 11:28 PM PST

    I see it over and over again and wonder :

    1. Where should I read code if im self teaching and dont work with other people.
    2. What code should I read? I don't want to pick up on bad practices.
    submitted by /u/BigBootyBear
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    What did you learn in 2018 and what are your programming goals for 2019?

    Posted: 31 Dec 2018 12:57 PM PST

    I got started summer this year and I'm amazed by my progress. Started out with HTML, CSS then Javascript.

    My go-to tools were: Youtube, Eloquent Javascript, Reading docs and Just making projects (this was the most important part I feel). I have managed to get a good enough grasp of the language this year.

    I've been able to freelance and actually get paid to learn as well, so that was a pretty fun part of 2018. I now find myself being able to notice problems in my javascript logic before I even type it out. I know I still have a long way to go. I'll be deploying my first full stack project in about a week.

    I'm getting more into the backend of web applications this year. My goals for the coming year are to:

    1. Work on more full stack projects with Node.js and Express (I have a whole document of ideas that only recently seemed possible. I feel like I actually execute a few of them, which is exciting).
    2. Start learning React.
    3. Get my feet wet with python

    How about you guys?

    Good luck this year btw, stay focused and remember that this is not supposed to be easy but it is meant to be somewhat fun. Happy New Year.

    submitted by /u/mort_vivant
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    Any recommendations of youtube/text tutorials for React Native iOS development?

    Posted: 31 Dec 2018 07:43 PM PST

    I'm on winter holiday and have been poking around at how to get started, wondering if anyone has advice for me before I start!

    I've worked primarily with java, bit of C and python as well.

    submitted by /u/mresch356
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    When to use an interface over an abstract class, and vice-versa?

    Posted: 31 Dec 2018 10:32 PM PST

    Newbie here who just learned about interfaces and abstract classes. I googled a bit and most of the answers only highlighted the technical differences. I still don't really see when you would use an interface over an abstract class. I'm hoping I could find some help here, because these concepts have me quite confused.

    submitted by /u/Multipl
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    Where do I go after finishing C++ beginner's tutorial?

    Posted: 31 Dec 2018 08:13 PM PST

    I just finished a beginner's guide for C++ that covered OOP and I'm able to write basic terminal programs, now how do I move from there?

    I have a few ideas for basic programs but I don't know how to move forward for example I want to create a program that shows my current upload and download speed for windows like NetspeedMonitor or create a simple 2D game.

    What do I need to move forward with these small projects?

    Thanks.

    submitted by /u/WholeConsideration6
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    I've noticed people often criticize code that is awkward or confusing in the way it's used. Would this code I came across be an example of that? (C++)

    Posted: 31 Dec 2018 04:51 PM PST

    if((myVoice = dynamic_cast<SynthVoice\*>(mySynth.getVoice(i))))

    {

    //etc.

    }

    At first I thought it was supposed to be a comparison operator "==" but I saw somebody comment that what was happening is that myVoice is being dynamically cast and if that logic is successful, it will return "true" to the if statement (thus, it sort of becomes a conditional since you'll know that myVoice is successfully cast). Is this considered okay? Or is this an example of acting clever but creating difficult to read code?

    submitted by /u/ComposerShield
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    Simple PDF files split and merger tool under 90 lines of code

    Posted: 31 Dec 2018 03:44 AM PST

    Dear all,

    I wanted to share a really simple but effective pdf split and merger tool.

    You can find the source code here

    I have not found any lightweight tool like this so I had to make it. I think for beginners it is a nice way to see how we can manipulate pdf files.

    I quickly needed to select pages from various pdf documents and merge them into a single one and this is why I created this.

    Let me know what you think!

    submitted by /u/gabegabe6
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    [Python] This block of code is supposed to be an infinite loop. But when I paste in in my IDE it doesn't seem to loop forever.

    Posted: 31 Dec 2018 08:45 PM PST

    num = 100 while not False: if num < 0: break print('num is: ' + str(num))

    ​

    If I indent the print function at the end it keeps printing " num is: 100" infinitely but as it is right now it doesn't do anything. Is it just because it's not supposed to print anything? So even if I can't see the shell continuously scrolling down by itself it's actually stuck in a loop?

    submitted by /u/Bread11193
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    How do i get over my fear of not understanding whatever coding tutorial I'm studying?

    Posted: 01 Jan 2019 12:26 AM PST

    That has been my biggest problem since I started learning to code. Can somebody help me?

    submitted by /u/Creepgoddd
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    What are some good beginner projects for people using JS?

    Posted: 31 Dec 2018 03:37 PM PST

    I started JavaScript a few months ago and I was wondering if there were some projects for beginners that I could do. Thank you for reading and have a nice day!

    submitted by /u/LiamTheProgrammer
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    How do I increment a cell after clicking a button?

    Posted: 01 Jan 2019 12:17 AM PST

    sheet.getRange("A2").setValue(value);

    When the user clicks the button the value should be changed to A2 then after he clicks again it should be changed to A3 and so on and so forth. How do I do this? Please help.

    submitted by /u/lynlyn9
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    Should you export "if" conditions to a separate method?

    Posted: 31 Dec 2018 11:16 PM PST

    Ill be concise and provide two examples:

    A:

    public int generateSomething(int a, int b) { if (activity.getIntent().hasExtra("Something")){ //dostuff } }

    B:

    public boolean isThereIntent(Activity activity) { if (activity.getIntent().hasExtra("Operation")){ return true; } else { return false; } } public int generateSomething(int a, int b) { if (isThereIntent(activity)) { /doStuff } }

    Which function is better and cleaner? I think I could do away with the if statement in the generateSomething() but I don't know how. Im currently reading "clean code" and want to clean up my functions.

    submitted by /u/BigBootyBear
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    Code along with Pluralsight?

    Posted: 31 Dec 2018 11:02 PM PST

    I find it really difficult to try to follow along a tutorial, writing all of the code that the instructor writes, while still being able to focus on understanding the material. Is there some way to avoid this problem? Do other people code along, or is there some better method?

    submitted by /u/nso95
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    So I wrote a beginner friendly article about speeding up python.

    Posted: 31 Dec 2018 07:01 PM PST

    Hi Guys, This was my first blog where I explained about the concepts behind PyPy and how it boost up the speed of your python code. I tried my best to explain this in simplest form.

    Link

    I hope you enjoyed reading and I am reading to take feedback. Anyways Happy New Year Everyone this subreddit has been really helpful to me

    submitted by /u/mraza007
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    Continue with C or start Java?

    Posted: 31 Dec 2018 10:18 PM PST

    So I'm a college student but because of some financial aid issues I'm gonna have to sit out this semester. I took an Intro to C course at my university this past semester which covered everything up to structs and struct pointers. Should I start learning Java for OOP or continue with C for CS1 during the summer?

    submitted by /u/RnjEzspls
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    Why is the C programming language still relevant?

    Posted: 31 Dec 2018 09:40 PM PST

    "The C programming language has been around for 46 years, and many people would consider that quite a feat. After all, few languages have that longevity." - Jennifer Ireland

    C is also high demand. How has C managed to succeed while so many other languages by comparison failed?

    ​

    One reason might be that C is ever-evolving, allowing it to meet the demands of today's IT world.

    I got this information from an article I saw called "Why is C programming still relevant in 2018?" by the Armada Group

    submitted by /u/LiamTheProgrammer
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    Level of Math to become an architect?

    Posted: 31 Dec 2018 09:31 PM PST

    I'd like to start off with I have ambitions to become a high-level "systems architect" Whatever that means. Ultimately, I'm aiming for a senior developer position that helps the company achieve its goals.

    I had trouble passing College Algebra but I [think I'm] really taking to JS, NoSQL, Go, Python, etc. I think any type developer can benefit from understanding math, but I'm not sure at what level. Like I think a "distinguished" developer would be better at certain types of math rather than knowing everything a mathematician knows. I guess that's the reason for the post. Is there a level of math I should fully understand to be a great developer?

    TLDR, strip away the soft skills and the business acumen, what level of math would a senior architect need?

    submitted by /u/Techinz
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    What language do I need to learn for this?

    Posted: 31 Dec 2018 03:26 PM PST

    I want to create a website and I don't know how to code. Basically, when you first enter the site you'll input some stuff (like a quiz) and then based on your answers you'll be given a set of links to products from a certain online store (being able to buy directly from my site byt the products are from anither online store, an affiliate link)

    What language should I learn for this? I'm aware I need to learn html and CSS for any website.

    submitted by /u/minnoo16
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    I have successfully extracted data, not sure what to do with it now?

    Posted: 31 Dec 2018 09:19 PM PST

    I received my data in the form of a .json file, not at all what I was expecting, no idea what to do with it.

    Ultimately I want to put my data on a google spreadsheet.

    It's data from an online game called EVE online.

    It's supposed to be "items" and their "locations" in the game.

    ​

    Here's a sample from the file

    ​

    { "is_blueprint_copy": true, "is_singleton": true, "item_id": 1029491331221, "location_flag": "AutoFit", "location_id": 1029340291644, "location_type": "other", "quantity": 1, "type_id": 17331 },

    No idea what the item even is, they don't go by numbers in the game.

    ​

    I'm mostly familiar with python, can i use it to translate usable info out of JSON? something like this?

    location = {1: "Bobs", 2: "Sams"} if location_id == "1029340291644": current_location = (location[1]) #Sams

    No idea where to start with extracting order out of this chaos, so just need to know where to begin.

    submitted by /u/SkepticDad17
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    Should I go more in depth in C# before moving to C++?

    Posted: 31 Dec 2018 05:27 PM PST

    I'm currently a 9th grader and I've always been interested in programming. I have done Unity with C# for about 8 months (mainly for fun and experience), and I have almost finished the JS tutorial in KhanAcademy. I am looking at moving to Unreal Engine with C++ to get a more in depth look into programming with the lower level language, but I haven't done more advanced stuff like IEnumerables in C#. Should I finish learning more advanced C# parts before moving to C++?

    submitted by /u/daancingbanana
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    Python: Help with "and"?

    Posted: 31 Dec 2018 09:13 PM PST

    Howdy, forum! I'm cracking away at a problem over at https://snakify.org wherein I have to compare the colors of two locations on a chess board. Right now, I'm working at getting the code to recognize one set of coordinates, before I add in the other one for comparison. However, I am having an issue with my code:

    x = "black" y = "white" r1 = int(input()) if r1 > 8: exit() if r1 < 0: exit() c1 = int(input()) if c1 > 8: exit() if c1 < 0: exit() if r1 == 2 or r1 == 4 or r1 == 6 or r1 == 8 and c1 == 1 or c1 == 3 or c1 == 5 or c1 == 7: print (x) elif r1 == 1 or r1 == 3 or r1 == 5 or r1 == 7 and c1 == 1 or c1 == 3 or c1 == 5 or c1 == 7: print (x) elif r1 == 2 or r1 == 4 or r1 == 6 or r1 == 8 and c1 or 2 or c1 == 4 or c1 == 6 or c1 == 8: print (y) elif r1 == 1 or r1 == 3 or r1 == 5 or r1 == 7 and c1 == 2 or c1 == 4 or c1 == 6 or c1 == 8: print (y)

    The issue here, is that no matter what, I'm retrieving variable x. I'm reading it as: if row one is here AND column one is here, THEN this. But that's not happening!

    ​

    Any ideas?

    submitted by /u/jessemania
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    Build interactive note builder in html

    Posted: 31 Dec 2018 01:09 PM PST

    Hi all,

    I'm looking for some help - I'm not particularly great when it comes to coding, I've made some simple html files for calculators, dates/date ranges calculators etc but I'm looking to step up and build myself a tool to help with work, I'm just not sure where to start.

    ​

    I want to have a file with an interactive menu, possibly drop downs or tick boxes where I can select certain properties and it will fill content into a box to build a note. Example, I tick a box for "Documents Provided" and it will insert into a note saying "The documents have been provided.", that way a long note can be built using a lot of selection menus/tick boxes to save writing out the same sentences over and over.

    ​

    I understand I could probably achieve this with macros, but I'm looking for a more simple method that can be deployed to other users, so I'm wondering if it's possible to build such a thing into a html file.

    ​

    Where would I start to be able to achieve this? What language(s) would I need to learn? Is it possible? Is there a name for what I want to do? Where could I go to get some resources to teach me how to do this?

    ​

    I tried some searches but nothing is bringing back results relevant to what I want, so I don't really understand how to explain my idea.

    ​

    Any help you can offer is appreciated, thanks!

    submitted by /u/FalseHippo
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