javascript - jQuery min/max property from array of elements

Question

Is there a simple way to find the min/max property from an array of elements in jQuery?

I constantly find myself dynamically resizing groups of elements based on the minimum and maximum counterparts. Most of the time this pertains to the width and/or height of an element but I'm sure this could be applied to any property of an element.

I usually do something like this:

var maxWidth = 0;

$('img').each(function(index){
if ($(this).width() > maxWidth)
{
maxWidth = $(this).width();
}
});

But it seems like you should be able to do something like this:

var maxWidth = $('img').max('width');

Does this functionality exist in jQuery or can someone explain how to create a basic plugin that does this?

Thanks!

Answer 1

Use Fast JavaScript Max/Min - John Resig

Example with three logos of google, yahoo and bing.

HTML

<img src="http://www.google.co.in/intl/en_com/images/srpr/logo1w.png" alt="Google Logo" /><br/>
<img src="http://l.yimg.com/a/i/ww/met/yahoo_logo_in_061509.png" alt="Yahoo Logo" /><br/>
<img src="http://www.bing.com/fd/s/a/h1.png" alt="Bing Logo" />

Javascript

$(document).ready(function(){
    // Function to get the Max value in Array
    Array.max = function( array ){
        return Math.max.apply( Math, array );
    };

    // Function to get the Min value in Array
    Array.min = function( array ){
       return Math.min.apply( Math, array );
    };

    //updated as per Sime Vidas comment.
    var widths= $('img').map(function() {
        return $(this).width();
    }).get();

    alert("Max Width: " + Array.max(widths));
    alert("Min Width: " + Array.min(widths));
});

P.S: jsfiddle here