Math & Numbers - JavaScript - Tutorial 8

Throughout the course we'll be looking at various topics including variables, arrays, getting user input, loops, conditionals, interacting with the DOM and much more.

[ProperlyBlack]

The mathrandom method is really cool. Will definitely want to utilize that

[isaacola]

Absolutely clear, precise, and straight to the point. Bravo!!!

[manthan]

Amazing, you have the best tutorials.

[asfandsellerlegend]

hands downs the best tutorials for beginners

[MalkiaMmoja]

If I had such a teacher as a child, by the age of 18 I would already know all programming languages.

[sheikahamediqbal]

Start Making challenge videos Mike.
It would be good.

document.write("Thx A Lot"); //you know the results
You helped me a lot.
This is better than Whitehat Junior. (I only did the free class).
And post new videos.

[sakthi.....]

Bro..please upload video of every topics..!
And please upload swift please...!

[SonicTheHedgehog-mhuw]

At the end of the video:

Recommended videos: Mike Dane - Is JavaScript bad for beginners?

Me: ...um

[ultrasonic]

hey soo, when i try to put the document.write function, it keeps telling me that document is not deffined. Does anyone else have this problem ?

[smithadam]

Hi Mike. Thanks for your job. I have found your video tutorials one of the most useful on the web. Others usually start in the middle and impossible to follow. I have passed your HTML and CSS tutorials (and learned these from other sources too), now I'm at the very beginning of JavaScript. I have reached to this part of your series, called Math. I am watching the videos on your website and under this video you gave some examples. I am confused now because the example under the video haven't been taught in the video. What should we do with those examples? These are the code lines I'm talking about and I can not understand:
var num = 10;
num += 100; // +=, -=, /=, *=
document.write(num + "<br>");

num++;
document.write(num + "<br><br>");

These lines result me 110 and 111. What does that num+= does? And what num++ ? By the way, does the spaces do any difference? Once you use one space before +=, then there is no space in num++. Maybe num += means "from now on the value of the variable is 100 plus the former value, which gives 110 together. But then what num++ does?
Is it only me who missed some important lesson part accidentally or you jumped fast forward and gave some advanced trick to dig deep in the problem from other sources?

[noahs]

I think the random between 0 and 10 has low odds to get 0 and 10 if we use round.

[abdurrafaywali]

Definitely not me watching this at 1.5x

[rowshonuzzaman]

Didn't know javascript follows the rule of Bodmas

[Standboard]

i dont understand what is this girafee academy like that thing doesn't even