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    Why does Markdown not have a standard specification yet? Ask Programming

    December 29, 2018

    Why does Markdown not have a standard specification yet? Ask Programming

    Why does Markdown not have a standard specification yet?

    Posted: 29 Dec 2018 12:19 PM PST

    I love Markdown. I use it for documenting all of the repos I work on and even use it to keep my own notes.

    But it pains me when people bash it for not being exactly standardized. Even though it's used in GitHub, Bitbucket, they seem to use their own "Markdown-flavors."

    This caused me to do some research. I stumbled upon the website of CommonMark which is looking to finally create a standardized specification for Markdown that everyone can be happy with. On the site, they published that they believe they'll be able to release the 1.0 spec sometime in 2018. Alas, here we are, and no 1.0 spec.

    So my question is: can anybody explain why this problem is still not resolved? It seems like it's taking an awfully long time. I'm guessing that people have written their own Markdown parsers with new, cool features and now the different stakeholders are having trouble coming to a concensus about what this markup language should look like. Is this the case?

    Also, without a standardized specification, how do you guys go about taking notes in machine-readable manner so that, rest-assured, you can use these notes for a long time? It pains me that the Markdown I write today might not work in some different engine. Is there a certain subset of Markdown that should work in any engine? Do you guys recommend any alternatives (a more experienced engineer I worked with swore by reStructedText but I never have seen anyone else use it)?

    submitted by /u/Zhughes3
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    What are the pros and cons of C and C++ with regard to embedded systems development?

    Posted: 29 Dec 2018 08:15 PM PST

    Web Devs of Reddit, besides HTML, CSS, JS and some frameworks, what are some things a student nearing graduation should know before applying for a position?

    Posted: 29 Dec 2018 11:32 AM PST

    I'm getting pretty fluent in ReactJS with Typescript, and I am confident in my CSS and HTML abilities; I just want to make sure I'm ready when it comes time to enter the field.

    Thanks!

    submitted by /u/paxbowlski
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    Why seal classes?

    Posted: 29 Dec 2018 05:00 PM PST

    I understand what sealing a class in OOP does ( makes it so that you can't say class Bar : Foo ).

    Out of nothing but strict, academic curiosity, for what reason would one seal a class?

    submitted by /u/Geoclasm
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    How to store receiving user uid in random chat app?

    Posted: 29 Dec 2018 12:55 PM PST

    Hi Everyone!

    I am make Flutter chat app and am work on add notification with Firebase.

    Every message is new document in Firestore collection with UID and text field. I can store user sending message UID easy because this user know its UID (it is store in client app).

    But how can I set receiving user UID in every message document sent? Chat is 1:1 and random so no know who will talk to before enter chat. DocID in chat collection are all auto-id.

    I need store UID of person receiving message in Firestore so cloud function can send notification after search user document in Firestore.

    I am look for answer for weeks but cannot find.

    I have find example where app just pass UID of user when receiving user is selected. But my chat is random so I no know before who user is connect to. So this solution not possible.

    Anyone know solution?

    Thanks!!

    submitted by /u/Flutter_Dev
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    Getting an error when trying to update database table from selection list

    Posted: 29 Dec 2018 01:57 PM PST

    Hi, so I have searched a lot on how to populate a select list using data from a database and then update the user data on the DB based on the selection the user made on the drop down list.This is for a college project and it will be basically a website that will provide live scores as well as the option to create an account and choose a favorite type of sport/team in the user´s profile page. I can successfully get the data from the DB and print it on the drop down list, however if i try to select some option, after clicking on it i get the following error:

    "Fatal error: Uncaught Error: Call to a member function execute() on boolean in C:\xampp\htdocs\score\login\update_fav_sport.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\score\login\update_fav_sport.php on line 9"

    What i´m trying to achieve is once the option is selected, it will insert in the DB fav_s column which belongs to the users table the data from the option i chose.

    Below my HTML code that has a little of php so i can retrieve the data from the DB to populate the selection list:

    <div class="row"> <div class="col-md-6"> <label>Change Favorite Sport</label> </div> <div class="col-md-6"> <button type="button" id="change_sport_btn" class="btn btn-primary btn-sm" data-toggle="collapse" data-target="#change_sport_form">Change</button> <div class="collapse" id="change_sport_form"> <form method="post" id="some_id"> <select name="select_fav_sport" class="form-control"> <?php $sql = mysqli_query($conn, "SELECT sport_name FROM sport"); while ($row = $sql->fetch_assoc()) {echo "<option value=\"{$row['sport_name']}\">{$row['sport_name']} </option>"; } ?> </select> </form> </div> </div> </div>

    Javascript:

    $(document).ready(function() { $('select[name="select_fav_sport"]').change(function() { var select_fav_sport = $(this).val(); $.ajax({ url: "update_fav_sport.php", method: "POST", data: { select_fav_sport: select_fav_sport }, success: function(data) { $('#some_id').html(data); } }); });

    The update_fav_sport.php:

    include '../db_connect.php'; if(isset($_POST["select_fav_sport"])) { $query = "INSERT INTO users(fav_s) VALUES ('select_fav_sport')"; $statement = $conn->prepare($query); $statement->execute(array('fav_s' => $_POST["select_fav_sport"])); $count = $statement->rowCount(); if($count > 0) { echo "Favorite sport set Successfully..!"; } else { echo "Data Insertion Failed"; } } else { echo "unknown index: 'select_fav_sport'"; }

    My db_connect.php:

    $server = "localhost"; $user = "root"; $password = ""; $db = "authentication"; $conn = new mysqli($server, $user, $password, $db); if ($conn-> connect_error){ die("Connection Error!" . $conn-> connect_error); }

    My DB has the table "sport" with 2 columns: id_sport and sport_name. It also has the column "users" with the columns: username, id, password, email and fav_s (which would be referring to the user´s favorite sport).

    submitted by /u/itachithexile
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    [Request] Need a list of commonly prescribed medications

    Posted: 29 Dec 2018 01:51 PM PST

    I'm trying to find a list of the most commonly prescribed medications. This can either be in a text file, an API, or the like. I'm creating a medications form, and I want to populate the form with the most common medications that are prescribed. I would ideally like to have the top 200? But if there is an even more comprehensive list, thatd be awesome!

    ​

    I'm not looking for as much information such as this image (which features tablet strength, color, and markings), however this would be a nice addiction!

    ​

    Bonus Points: If you have this list in a SQL query, that'd be even better!

    submitted by /u/OpenmindedRecovery
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    What do you think would be different about programming and software development today if almost all IDE's, editors and basically any program that lets you write and run code was not free to download and instead had to be bought and paid for?

    Posted: 29 Dec 2018 09:23 AM PST

    Creating a pipeline with programs in multiple programming languages

    Posted: 29 Dec 2018 01:06 PM PST

    What is the generally accepted method of creating a pipeline with programs written in multiple languages? An example would be having a winforms (C#) application as your display, with R generating graphs/processing datasets, and having an SQL database that holds all of the information for your project. Is this even a good idea? I remember seeing something about Java and Matlab being used simultaneously in the same raspberry pi for different purposes, but I never really figured out how to do that. Would you just compile them all as .exe's and call them to be executed from a master program?

    submitted by /u/codingduck
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    Is Arduino scalable?

    Posted: 29 Dec 2018 03:58 AM PST

    Am I limiting myself to "toy" size motors and peripherals if I get the Arduino starter kit and start learning that way?

    Am I correct that Arduinos use Python language?

    Is the language itself, Python, useful for programming heavy industrial robotics? With or without the Arduino brand chipsets?

    I'm basically a n00b but I've been modelling in Blender since before it was written in Py, so of course I tried to learn Python once already (but never saw a need to know it until recently taking an interest in programmable chips and robotics applications.)

    Thanks.

    submitted by /u/professor_mcamateur
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    Accessing this data in JavaScript

    Posted: 29 Dec 2018 09:03 AM PST

    Hey guys, I'm trying to create an interactive graph using D3 to analyze traffic flow. I was able to import the data from the CSV. Problem is, I'm not really sure how to access these nested arrays. The screenshots of the console and relevant code are here. Whenever I try console.log(Array[x][""x""]) to access a traffic count, it throws an Unexpected Token error. Does anyone have any thoughts? I haven't started trying to draw the graph because I don't know how to use the data. Any thoughts?

    submitted by /u/thisabadusername
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    Is there a free online service which visits a website every X hours?

    Posted: 29 Dec 2018 08:28 AM PST

    I have a heroku app on which I want to update something every 24 hours. The standard Heroku free plan sleeps after inactivity so I was unable to set a scheduled job from within the javascript code.

    However, I can start the task manually by visiting a url of my Heroku app. Is there a site which can do this for me every 24 hours? So a site which allows me to input the URL and then the site pings it every 24 hours?

    submitted by /u/rakkie20
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    I'm interested in both but should I go for ReactJS or React Native first?

    Posted: 29 Dec 2018 06:22 AM PST

    Hi all, as per above, interested in what I should learn first. For some preliminary background, I want to learn both, but have a current need to learn react native due to an app I'm making with a friend but time isn't a super issue.

    I'm probably more interested in react native as well, I've been using it so far and enjoying it, haven't had any problems but a lot is pretty self explanatory or theres a lot of support from people online. I also did some development in Android natively before so wasn't a hard switch. But obviously worried I'm missing out on the basics as a lot of the code are kind of obvious stuff, and anything difficult theres a butt load of npm modules.

    For ReactJS, I always wanted to get better at web dev, I've done a bit but mostly in html/css/js so everything is mostly me getting angry as css for not styling right lol. Theres also a whole heap of tutorials for it as opposed to React Native so I can grab a few through code academy and get the fundamentals pretty quickly out of the way. My thought is going through a course or two in reactJS which gives me the learnings I need for react native?

    First off, basic questions, are they similar, will me learning 1 help with the other? Should I learn redux, what exactly is it, even when I google online I really don't get it? Lastly which do you suggest I go with? Is it worth doing a reactjs course now, get it out the way and learn fundamentals, are they even similar?

    Thanks so much!

    submitted by /u/eitherrideordie
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    Suddenly no method or variable exists in the entire script, despite them existing. Anyone know what it could be?

    Posted: 29 Dec 2018 05:53 AM PST

    It must be some minute error that doesn't let the script compile. Everything should be working fine.

    https://i.imgur.com/vMyUtgx.png

    submitted by /u/NsfwOlive
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