Databases
StackOverflow2013
Postsdbo
POHow to place several elements randomly on page?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to place several elements randomly on page?
    primarykey
    data
    text
    <p>I want to place several elements of one class randomly on the page with Javascript / jQuery. My idea is to generate random values for margin-top, margin-left and z-index. The problem is that I need to generate values in between negative and positive (like from -150px to 300px) and I don't understand how to make it with the code I use:</p> <pre><code>$(".randomnumber").each(function () { var randomtop = Math.floor(Math.random() * 101); var randomleft = Math.floor(Math.random() * 101); var randomzindex = Math.floor(Math.random() * 101); $(this).css({ "margin-top": randomtop, "margin-left": randomleft, "z-index": randomzindex }); }); </code></pre> <p><a href="http://jsfiddle.net/7JGqZ/651/" rel="nofollow">http://jsfiddle.net/7JGqZ/651/</a></p> <p>So the problems I have:</p> <ol> <li><p>Don't know how to make it work with negative values — for example I need the top-margin to be from -150px to 300px.</p></li> <li><p>The elements in the fiddle beave a bit strange, like their positions are not really random or like they're connected to each other...</p></li> </ol> <p><strong>Update:</strong></p> <p>Made it work, but still don't like the result, I actually would like elements to be placed randomly so they would fit the page size, I mean that elements would be placed all over the page, not going too far above the edge of the page. Now I have a parent element that is fixed in the centre of the page (has width and height = 0, top and bottom = 50%), and my idea was to position its child elements with generating top and left margins somehow like this:</p> <pre><code>$(document).ready(function(){ $(".mood-img").each(function () { var height = $(window).height(); var halfheight = height/2; var margintop = halfheight-400; var width = $(window).width(); var halfwidth = width/2; var marginleft = halfwidth-500; var randomtop = getRandomInt(halfheight, margintop); var randomleft = getRandomInt(halfwidth, marginleft); var randomzindex = getRandomInt(1, 30); $(this).css({ "margin-top": randomtop, "margin-left": randomleft, "z-index": randomzindex }); }); function getRandomInt(min, max) { return Math.floor(Math.random() * (max - min + 1) + min); } }); </code></pre> <p><a href="http://jsfiddle.net/7JGqZ/657/" rel="nofollow">http://jsfiddle.net/7JGqZ/657/</a> </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USKostsei
    1. USKostsei
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to place several elements randomly on page?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COAs for #2, there is no true random when it comes to coding. As for #1, you could generate a random number from 0 to 450 then subtract 150...
      singulars
      1. POHow to place several elements randomly on page?
      1. USZach Saucier
    2. COFor #1 you could generate random numbers between 0-450 and then subtract 150 to get at your desired range.
      singulars
      1. POHow to place several elements randomly on page?
      1. USaztechy
    3. COWell, I've heard about that, but what I mean here is that elements are always placed in a group, not far from each other.
      singulars
      1. POHow to place several elements randomly on page?
      1. USKostsei
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload