How To Make A Web App In 7 Minutes


Writing a web app is actually pretty simple when using the free tools that Google provides.


  1. Charles Williams
    Charles Williams
    May 5, 2013 at 6:34 am

    As of now the GUI Builder (Build a user interface option) has been deprecated.

    “Warning: The GUI Builder was deprecated on March 13, 2013, and will only be available until September 16, 2013. After that point, you will not be able to create or manage GUI Builder components, although existing components will still function. ”

    You should make a tutorial that incorporates the use of HTML/CSS for client side interactions, which is what Google is moving towards instead.

    Read your documentation, gigafide.

    • admin
      May 28, 2013 at 4:11 pm

      This was meant for beginners, not coders. The method I showed is the easiest way to start making a web app without any coding knowledge. If you don’t approve of the information portrayed in this video, please feel free to make your own so that I can criticize it with comments.

  2. Nándor Ras
    June 6, 2013 at 2:18 pm

    I’ll have a question. If what we’re making is a Square Root Calculator. How come it can’t calculate the Square root of -1 (which is ‘i’). Is there a way to make it calculate those values too?

    • CededJoy
      June 29, 2013 at 4:15 am

      Nándor, the reason for that is the limitations of the JavaScript Math.sqrt() method. The method, probably for coding simplicity’s sake, doesn’t mess with negative numbers. “If x is a negative number, NaN is returned” ( To correct for this we must simply add an if statement. If (origNum<0) {var sqRoot = (Math.sqrt(-origNum) + "i")} else {script as is}. To prevent the return of "1i" just add another if statement or catch for -1 to return "i".
      At this point it might look something like this:

      if (origNum ==-1)
      var sqRoot ="i";
      else if (origNum<0)
      var sqRoot = (Math.sqrt(-origNum) + "i");
      var sqRoot = Math.sqrt(origNum);

      Hope it helps 😀

      • Alexander jordan
        Alexander jordan
        July 28, 2013 at 11:28 pm

        Dude do you even ternary?

        var sqRoot = origNum >= 0 ? sqrt(origNum) : (orignum == -1 ? “i” : sqrt(orignum) + “i”);

  3. Dakotah
    August 1, 2013 at 2:09 am

    Thanks Tinkernut i An learning to write code and that video has influenced me to keep going it was fun to make.

  4. Stacey G.
    Stacey G.
    October 11, 2013 at 5:45 pm

    Help me Tinkernut, you’re my only hope. Sorry, about that. My poor brain is not big enought to hold all of the programming info I need to make my own app. But I have a really great idea for an app (ok great in my eyes). I started two years ago trying to make a website with what I learned on your website and through w3schools. Now I’m seeing that apps are the way to go. I have no cash to hire someone and I wouldn’t know who to hire that wouldn’t just take my idea and make it their own. I’ve thought about going through Kickstarter to raise some $$$ but again I am worried about someone smarter than me taking the idea and using it as their own. Any ideas or directions you could point me in would be great. Thanks for listening??? er reading, Stacey G

    • admin
      October 15, 2013 at 6:17 pm

      you don’t need to make an app. just make a responsive website that is viewable on both regular browsers and mobile browsers. Then people can view your content no matter what platform they’re using.

Leave a Reply