9.5: JavaScript setInterval() Function - p5.js Tutorial

All examples:

Solution to exercise mentioned:

Help us caption & translate this video!

[poojak]

You are the best coding teacher I've ever encountered.

[Evildragonfirez]

The whiteboard explanation does wonders for me, thank you for that!

[crehenge]

I love how creative I can be with your tutorials! I'm making memory training tools for memory athletes with it!

[aniketjain]

The level of your teaching is next level 🥰

[--bountyhunter--]

lmao I love his enthusiasm xD
gives off such a positive vibe

[john_wick_vgamer]

if i love code was a person...this guy obsoletely enjoys what he is doing...

[goldthumb]

"Thread" is a hard topic. Stopping a timer(the interval var in this video I guess, the var named "timer" in this video is a P html tag actually) is not easy on some programming languages/platforms. Good to know that clearInterval function can stop a repeating timer in JavaScript.

[Protegit]

I want 'var a' to be randomized every 10 seconds so I tohught Id use the setInterval() function... but... it just randomizes it every frame after 10 seconds of running the program :X What am I doing wrong

[Dirtbreaks]

I cannot get any of these timeouts or intervals to work with a draw function :(

[hamzalakhal]

how can we slow down the motion of the line ? I used setTimeout/setInterval inside draw function but it didn't work ?

[BrettClimb]

Super useful stuff! Thanks for posting.

[domoledlight]

hello Sir top video is it possible to use your lesson with nodejs in orther to control a serial port lissening with feed a html page

[WomboBraker]

holy shit, great work explaining. Thank you so much.

[taarnum]

I've got an array of objects from a .json file. Simple lat/lon coordinates. I can for loop through the array drawing shapes at certain locations. However, I've not managed yet to draw the shapes one after another after a certain period of time. I've tried using the setInterval() function but I'm not quite sure what has to be inside of it and what not. Help appreciated.

[matthewjames]

This video is amazing! Daniel, If you've got a spare moment i'd love your help! I've got my simulation running by clicking on a button which sets off setInterval. When I click the button again it runs two simulations which makes canvas freak out. How can I clear the first simulation with the button then make the next simulation run over it? Thank in advance man!

[P]

Hi Daniel, could you explain how the timer stops when you click the button again. I see your using an if else statement but how does it know to stop the timer? example) if ( !interval ){ interval = setInterval(); } else { clearInterval ( interval ); interval = false; }

[ifeanyinnaemego]

Please how I use JavaScript Ajax to update a database every 30days

[malibogic]

Hey Dan, think you can help me? I want to make for a program of mine (a bot for Discord) a constant update on what "game" it's playing. Most of the bots use the games to show how to use the bot by setting it to their help command. However, I made a little customizable part, and I want my bot to check, let's say, every second if it changed. I'm not sure how to make setInterval do that, do you know by accident? If you need the code, just reply and I'll paste it.

[JuanLopez-pjws]

So I was looking at this video because I'm trying to find a way to just stop the SetInterval command whenever I want in Microsoft edge developer console. This is what I have so far and any help are more than welcome (I'm not a programmer).

setInterval(function () {


}, 500);

I just want the command to stop doing the clicks on the 'see_older' element, and of course the page not to refresh.

[anisara]

Hello, i have a chart, and i want to setinterval it without drawing chart every second? do you have a idea?