[JavaScript] Minesweeper game in 100 lines of code - easy tutorial learn programming |
- [JavaScript] Minesweeper game in 100 lines of code - easy tutorial
- How do scripting languages run fast?
- My Python calculator isn't working? I feel like the logic is correct...
- (C) If I declare a string array without using malloc(), do I need to still free() it? Example below.
- Can someone explain Big ‘O’ notation and why it helps to learn it?
- Cannot Understand loops
- [Java] Please explain constructors and methods better
- What's the difference between wrapping a library, and binding a library?
- 6 year old book worth studying?
- Started #100DaysOfCode yesterday, and made a simple webpage for others to checkout what I've done!
- C++, Cannot figure out why my program will not/cannot read from the same file twice.
- Trying to get GitHub to work with XAMPP. Sync htdocs AND database
- Building a Line Sentiment Detection Chatbot
- Can't help making lots of classes?
- Routing in Express/Node
- How do I save user data on a website?
- How long does it take to complete the Odin Project for a college student?
- Assembly Language, simple code made more efficient
- Making Game With JavaScript and P5JS
- Is it possible to click HTML button from within the code?
- Learning by reading source code?
- Job opportunity as a junior programmer, need guidness for interview
- [Java] Luhn Algorithm Help
- Frontend vs Backend
[JavaScript] Minesweeper game in 100 lines of code - easy tutorial Posted: 27 Oct 2018 07:48 AM PDT |
How do scripting languages run fast? Posted: 27 Oct 2018 11:15 PM PDT I'm well aware that scripting languages are slow. From what I understand they can be really fast. For example when most of it is using a 'c module' it can run in comparison of a native app. However I'm sure there's lots of techniques. Is there any books or articles I can read? What are ways of implementing a scripting language and having it run fast? I only know of using C code/modules and JIT [link] [comments] |
My Python calculator isn't working? I feel like the logic is correct... Posted: 27 Oct 2018 11:58 PM PDT I am new to constructing things in Python, so I thought I'd start by making a simple calculator; it can perform an operation on two numbers (so only two can be added together, one can be divided from another, etc.) and it contains operations for addition, subtraction, multiplication, division, and the modulus operator. It has an input where you first have to enter the kind of operation you're performing, then if and elif statements to calculate those two numbers based on the kind of operation you want, then finishing by printing the answer. For some reason, even though the logic looks completely sound, my code does NOT work. When I type anything into the first input, it'll add the two numbers I enter together no matter what, and will not perform other operations. What's wrong with my code? print("Type START to run the program again.") Thanks in advance! [link] [comments] |
(C) If I declare a string array without using malloc(), do I need to still free() it? Example below. Posted: 27 Oct 2018 07:36 PM PDT I need to read from a text file that contains a list of words from the dictionary and store them into a data structure. I'm choosing a string array. Since I know how may words there are, can I just do this?: And do I need to free() this at the end of the program? [link] [comments] |
Can someone explain Big ‘O’ notation and why it helps to learn it? Posted: 27 Oct 2018 05:50 PM PDT So I've been teaching myself to program and have started looking into algorithms, right now I'm learning about sorting algorithms and some of the things I have read talk about the Big 'O' notation. I don't understand how it works or how it relates to Programming in general, thank you. [link] [comments] |
Posted: 27 Oct 2018 02:08 PM PDT So I am in my python class right now and I am falling behind so much because of these stupid loops. I keep re-reading the chapter and doing the example but when I get a problem using loops, I cannot do it myself and honestly its frustrating to the point where I actually think I am incapable of coding. Anyone have any tips or advice you can shed for me, the textbook I am using currently Learning Python 4th edition [link] [comments] |
[Java] Please explain constructors and methods better Posted: 27 Oct 2018 05:41 AM PDT Hello, I am a first year student at a university and we're writing a test on Monday that includes basic knowledge of Java - multiple classes, references to objects, methods, constructors, method overloading etc. I am trying to get a better understanding on how methods and constructors work, but I've got a problem understanding exactly how the variables work with methods and constructors. For example I want to make a simple program that calculates the area of circle. I have class Main and class Circle in which I want to make a method that uses two attributes - radius and pi. So far so good, now let's add a method with two arguments - double r and double pi: Is my code okay at this point? Shouldn't there be another method called setArea as well, in which I want to set the value of radius? How do the variables work with multiple methods in one class? How do I print out an object with set attribute for radius in my Main class? How would the code that creates an object in which the getArea method is used look like? If I wanted to get the square root of the calculated area in the first method, how will the method that calculates the square root look like? If you can, please, point me toward these answers using examples. Thank you in advance. [link] [comments] |
What's the difference between wrapping a library, and binding a library? Posted: 27 Oct 2018 11:51 PM PDT |
6 year old book worth studying? Posted: 27 Oct 2018 08:02 PM PDT I was recently given a C++ book from 2012 (C++11). I noticed online that it's currently up to C++17. Is is worth going through to learn? Or should I stick to online resources that are more up to date? [link] [comments] |
Started #100DaysOfCode yesterday, and made a simple webpage for others to checkout what I've done! Posted: 27 Oct 2018 09:21 AM PDT https://wislos.github.io/100-days-of-code/ Currently, I've just started on my Java project (to make a Todo-app), but I will make more! Anyone else doing 100 days of code? [link] [comments] |
C++, Cannot figure out why my program will not/cannot read from the same file twice. Posted: 27 Oct 2018 11:24 PM PDT I am working on an assignment that required me to read from a file. Part of the assignment first requires me to count the amount of lines in the file. The next part of the assignment then requires me to read every line from the file in order to allow users to input a response according to each line. After googling I have found several iterations of potential solutions with this one describing perfectly what I am attempting to do. Other potential solutions are here, and here. I have also tried what seems like the simplest solution, file.close(), file.open(), with search results mentioning that file.clear(), must also be used. To the best of my knowledge, I have tried every iteration of possible solutions, to no avail. Any help in solving this issue/ and or steering me in the right direction would be greatly appreciated. Thanks in advance. My code can be viewed here. [link] [comments] |
Trying to get GitHub to work with XAMPP. Sync htdocs AND database Posted: 27 Oct 2018 11:03 PM PDT I'm a bit familiar with github and totally new to xampp. I'm working on a project with a few friends and would like to be able to use github so that everyone can contribute and see changes etc Usually I would create a github repo and put my project folder in there (for instance my Unity3D project or and Android Studio project). However, as far as I know, XAMPP stores my php/html/css etc files in \htdocs\myproject\ and my database in \mysql\my_db\ I dont know how to get both of the things (my actual website files, php/html/css, and my database files) to be in one repository. Right now the only solution I can think of is to only sync the htdocs\myproject\ folder and just have separate database on each computer (which is going to be a pain since we're supposed to work on the database too). Any help is appreciated. Thanks! [link] [comments] |
Building a Line Sentiment Detection Chatbot Posted: 27 Oct 2018 10:27 PM PDT Yes, it's another bot tutorial! However, this one has some interesting elements, and is quite extensible. Here is part 1 of the ongoing series: Building a Sentiment Detection Bot with Line and Ruby. [link] [comments] |
Can't help making lots of classes? Posted: 27 Oct 2018 10:13 PM PDT This isn't really a specific example, but whenever I start a project in an OOP language, I always end up making tons of classes before I get anywhere. Usually, I have one central focus, but end up making tons of support classes that play a sort of minimal role. How much is too much? EDIT: I'm not sure if this is the right place to post this. If it isn't, I'm really sorry. [link] [comments] |
Posted: 27 Oct 2018 09:57 PM PDT If you have two routes such as: app.get("/", function(_,res){ res.render("home"); }); app.get("/:id", function(_,res){ res.render("home"); }); As you can see, both routes render the same page. Is there a way to combine this into just one line? I know you can use app.get("*"), but I do not want to allow urls that have more than one "/". [link] [comments] |
How do I save user data on a website? Posted: 27 Oct 2018 09:51 PM PDT I'm really new to html, like I just started yesterday new. I think I understand a lot of the basics, like how the tags work, how to format with CSS, embed code with JavaScript, etc. that's where my knowledge ends. I think for the next step, I need to figure out how to actually store data. This could be something like account information, or for instance, I was trying to recreate a poll like the ones on straw poll.com, (I thought that would be a good beginner exercise), and while I think I have the formatting figured out, I've hit my wall. How do I save the answers? Looking into it, if I'm understanding correctly (part of the problem is I don't understand the terminology to look up what I want) I think I need to set up a database with SQL, but looking into that, I had no idea where to start. I'm not even asking for like a direct tutorial, it just seems really overwhelming and I don't know where to start learning how to make a website of my own. Thanks for the help, and I appreciate any pointers. [link] [comments] |
How long does it take to complete the Odin Project for a college student? Posted: 27 Oct 2018 03:53 PM PDT I'm a CS major in college trying to integrate the Odin project (among other things) into and independent study course on web development. I'm trying to figure out about how much time it should take to complete the course because I only have about 3 months and 3 hours per day. Not to mention I also want to integrate a few other subjects (sql, boot strap, etc.) Any recommendations of complementary programs would be appreciated. Edit: I plan on skipping the jQuery section. I'm trying to get an internship this summer and all the ones on my list do not require knowledge of java. [link] [comments] |
Assembly Language, simple code made more efficient Posted: 27 Oct 2018 09:27 PM PDT What could I change to give this code a performance boost? This program is supposed to multiply each half word from multiplicands array by the same numbered half word in MULTIPLIERS array and put the result in the same numbered element in PRODUCTS array. text .global _start _start: .equ NUM, 4 LDR R1,=MULTIPLICANDS @ Load pointer to MULTIPLICANDS array LDR R2, =MULTIPLIERS @ Load pointer to MULTIPLIERS array LDR R3, =PRODUCTS @ Load pointer to PRODUCTS array MOV R4, #NUM @ Initialize loop counter NEXT: LDRH R6,[R1] @ Load a MULTIPLICAND Half word in R6 LDRH R7, [R2] @ Load a MULTIPLIER half Word in R7 MUL R8, R6, R7 @ Multiply STR R8, [R3] @ Store result in PRODUCTS array ADD R1,R1,#2 @ Increment MULTIPLICANT pointer to next ADD R2,R2,#2 @ Increment MULTIPLIER pointer to next ADD R3,R3,#4 @ Increment PRODUCTS pointer to next SUBS R4,#1 @ Decrement loop counter by 1 BNE NEXT @ Go to NEXT if all elements not multiplied NOP @ Instruction for breakpoint. Does nothing. .data MULTIPLICANDS: .HWORD 0x1111, 0x2222, 0x3333, 0x4444 MULTIPLIERS: .HWORD 0x1111, 0x2222, 0X3333, 0x4444 PRODUCTS: .WORD 0x0, 0x0, 0x0, 0x .END [link] [comments] |
Making Game With JavaScript and P5JS Posted: 27 Oct 2018 05:14 PM PDT So I've always been told that even though you think you may have an understanding of something, you truly don't understand it until you can teach it to others. Even Albert Einstein said, "If you can't explain it simply, you don't understand it well enough." I've just started live streaming my process of making a set of JavaScript games using the library p5js. I try and explain while I program and hopefully my videos can help others. I live stream them to both Twitch and YouTube. Feel free to leave comments of you have questions about anything. Twitch: https://www.twitch.tv/collections/K9h4akCKXhWtrg YouTube: https://www.youtube.com/playlist?list=PLCGtQjAB1Winev5ytBIsnoW5Bj6TnsZqk [link] [comments] |
Is it possible to click HTML button from within the code? Posted: 27 Oct 2018 08:55 PM PDT Hi, I am using Apple's new app Shortcuts, it lets you program relatively basic scripts from within your iPhone/iPad. As of right now I am experimenting with websites and automating things using them. The thing is I got into this page http://www.myrapname.com/ and I want to be able to generate a rap name using the html, that is filling the text box that asks you for your first name and then clicking the "Suggest male rap name" or "Suggest female rap name" button. From within shortcuts I can use GET, POST, PUT, PATCH and DELETE methods, but I don't know how to use them to fill the text box and click the button. In the past I've used GET to get information from certain websites, but I've never done something like what I am trying to do right now so I would like to know if it's possible and how would you do it? [link] [comments] |
Learning by reading source code? Posted: 27 Oct 2018 04:57 PM PDT After Watch and Code, I went ahead and completed the premium content as well. The main focus is learning by reading source code, the parallel being if you were an aspiring writer, you'd first read a bunch of books. Most programmers will probably admit they also spend more time reading code than writing. The last few videos briefly went over Underscore.js, so I've been continuing with that. While I've learned a lot, the process has been very slow and painful. The comments often aren't that helpful in really understanding how things are working. The code feels very intertwined when every function ends up calling ten other functions. I'm assuming Underscore is considered well designed, but you have to keep so many things in mind when looking at one function. I don't know if I'll ever be capable of writing anything with the same complexity. I've gotten past all the setup, which is probably the most difficult part, so I'll probably continue reading bits and pieces. But I'm curious what you guys think. Is this really a good way to learn? Should I read smaller libraries in the future? Should I still spend most of my time actually coding? [link] [comments] |
Job opportunity as a junior programmer, need guidness for interview Posted: 27 Oct 2018 08:08 PM PDT Hello reddit! I need help. I got great chance to get a junior software engineering position in the company that I am working at currently. I am a beginner still, only familiar with basic principles of programming, doing python and JavaScript for a while. I am studying software and data engineering on college (started almost a month ago in first year). So the job that I will be applying in 2months from now at most, will be a job where I will be writing some scripts(I don't know more info at the moment but nothing too complicated as my colleague told me), batch scripts, job starts from zero and they require only the basic knowledge nothing else. On the interview they are asking to solve minor algorithms, actually to solve minor problems with algorithms in pseudo code. Not even a couple of code lines, just to test your ability to think. I doubt that I can get that job since I have no CV but I will have good recommendation (hopefully), I've proven that I am hard working in that company, one of the best in team of 100+. But I have no idea how to prepare myself for this interview. I want this job so bad!!! Would you please, anyone, please help me prepare myself for those questions, tasks, give me advice...? anything and I would appreciate it a lot!! Sorry for the long post, I really hope I can grab this job opportunity. Thank you in advance! [link] [comments] |
Posted: 27 Oct 2018 07:34 PM PDT I am trying to code something using the luhn algorithm that takes the sum of the computation and adds it back to the original user entered string. For example 7992739871 should give me 79927398713 but is instead giving me 7992739871144. Please help: import java.util.Scanner; public class luhn { } [link] [comments] |
Posted: 27 Oct 2018 08:14 AM PDT Hi all! I apologize if this is against the rules but I am having a really hard time deciding what I want to do. I am currently working as a radio producer who would like to get into programming and eventually make a career change. I have been doing a ton of reading and research and trying to decide what language to start with and I have seemed to narrow it down to JavaScript if I want to do frontend development and Python if I want to do backend. My issue now is deciding between frontend and backend. I am not asking you to decide for me I am asking how you decided and what ultimately made you choose which way you wanted to sway for work. Also if I want to go full-stack is it better to learn both JS and Python or is one of them better than the other for full-stack. Thanks! [link] [comments] |
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