html - JavaScript button that generates objects in order -


i created button in js generates gifs randomly, change making them appear in order , repeat.

window.onload = () => {      const factsarr = [  	{  	image:'https://media.giphy.com/media/p6lx0t2mzypdc/giphy.gif',  	},  	{  	image:'https://media.giphy.com/media/uwdvkl2xn1evi/giphy.gif',  	},    {  	image:'https://media.giphy.com/media/1nkuav308cbws/giphy.gif',  	}      ];                document.getelementbyid('generate-btn').addeventlistener('click', () => {        const idx = math.floor(math.random() * factsarr.length);        document.getelementbyid('image').setattribute('src', factsarr[idx].image)      })          }
<button id="generate-btn">amazing fact button</button>  <img id="image"></img>

in snippet below, used global currimage variable increases on each click , resets when reaching image array size. image taken array's currimage index.

   // init variable   var currimage = 0;    window.onload = () => {      const factsarr = [  	{ image:'https://media.giphy.com/media/p6lx0t2mzypdc/giphy.gif'},  	{ image:'https://media.giphy.com/media/uwdvkl2xn1evi/giphy.gif'},          { image:'https://media.giphy.com/media/1nkuav308cbws/giphy.gif'}      ];            document.getelementbyid('generate-btn').addeventlistener('click', () =>       {          document.getelementbyid('image').setattribute('src', factsarr[currimage].image);            // increment variable on each click          currimage++;            //reset variable when reaches image array size          if (currimage == factsarr.length)             currimage = 0;      })          }
<button id="generate-btn">amazing fact button</button>  <img id="image"></img>


Comments

Post a Comment

Popular posts from this blog

ubuntu - PHP script to find files of certain extensions in a directory, returns populated array when run in browser, but empty array when run from terminal -

i running os ububtu 16.04. ultimate goal able run php script cron job every minute. here php script located @ /var/www/html/tests/test/index.php : <?php $directorypath = $_server['document_root']."/tests/test/data/"; echo "directorypath: $directorypath<br><br>";//check $imagefilepathsarray = glob($directorypath . "*.{png,gif}", glob_brace); echo "<br><br>imagefilepathsarray: "; print_r($imagefilepathsarray);//check ?> when open php script in browser visiting url my-ip-address/tests/test/index.php , get: directorypath: /var/www/html/tests/test/data/ imagefilepathsarray:array( [0] => /var/www/html/tests/test/data/pic.png [1] => /var/www/html/tests/test/data/pic.gif ) before writing cron job in crontab file, need check if can run anywhere using terminal . opened ubuntu terminal @ /home/ location, , executed in terminal: sudo php /var/www/html/tests/test/index.php i got following out...
Read more

php - How can i create a user dashboard -

today have questions you, want create user dashboard site, include (obviously), users data, example -email -username -and others stuff how can information, , print them in html page? if can, how can these information via php sessions? shuld use session? example, if user login, , start new session ( session_start() ), how can data print in dashboard? should use php "project"? in advice, have day , thank time!
Read more

javascript - How to detect toggling of the fullscreen-toolbar in jQuery Mobile? -

i have jquery mobile page fixed full-screen toolbar, data-tap-toggle enabled. straight under toolbar have positioned banner should slide upwards when toolbar hiding , slide downward when toolbar showing. jquery mobile toggles toolbar applying , removing ui-fixed-hidden class - sadly, can't find in documentation of toolbar widget toggle , hide or show event that. how can detect when toolbar toggled, reposition banner? .banner { position: fixed; background-color: darkseagreen; top: 46px; min-height: 48px; width: 100%; text-align: center; line-height: 48px; } <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"> <script src="https://code.jquery.com/jquery-1....
Read more