Insert A Div In A Random Location In A List Of Divs

I have a page that looks like so:

...

...

...

Solution 1:

Try something like below,

var $items = $('#container').find('.item');
var pos = Math.floor(Math.random() * $items.length)

$('.randomDiv').insertAfter($items.eq(pos));

Solution 2:

I'd suggest, pending further information:

$('.item').eq(
    /* I'm using the eq() method to select a specific element,
       and creating the random number (in the range from 0-(number-of-elements))
       within the method to avoid creating unnecessary variables. */
    Math.floor(Math.random() * $('.item').length)
    /* after() creates an element from the html string, and inserts it after
       the element selected earlier with the eq() method */
).after('<div class="random"></div>');

JS Fiddle demo.

A slightly altered, though more verbose, alternative to the above:

$('<div />', {
    'class': 'random',
        'text': '...'
}).insertAfter($('.item').eq(Math.floor(Math.random() * $('.item').length)));

JS Fiddle demo.

References:

• after().
• eq().
• insertAfter().
• Math.floor().
• Math.random().

Solution 3:

Code:

HTML:

<div id="container">

</div>

JS:

$(document).ready(function(){
    for(var i =1; i<10; i++) {
        $("#container").append("<div class='item' id='"+i+"'>Item</div>"); /*adding item divs dynamically */
    }

    /*the real magic is below */
    var rand_id = Math.floor((Math.random()*10)+1); /*generating an item divs ID randomly */
    $("#"+rand_id).after("<div class='randomDiv'>Random DIv</div>"); /*adding the random div after that div of the rand_id */
});

Fiddle: http://jsfiddle.net/mareebsiddiqui/ULcTc/

Explanation:

This is simple. First I add the item divs dynamically by giving them ID's respectively with starting from 1 and ending on 10. Then I generate a random ID using Math.floor() and Math.random() JavaScript functions. Then I fetch(using a simple technique) the div with that random ID and then after that div I add a random div.

Solution 4:

I will not provide code if you tried nothing.

But if you don't know where to start and need a workflow :

Coun't the number of div in container Create a random number between 0 and the number of div.

Append your div after the div with the random number index.

Solution 5:

This will work:

function randomDiv() {
    var divCount = $(".item").length;
    var randomnumber=Math.floor(Math.random()*divCount);

    $("div.item:eq(" + randomnumber + ")").after("<div class='randomDiv'>hey im random</div>");
}

Demo: http://jsfiddle.net/meaFv/

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