Call the plugin on the parent of the elements to equalize their height.
$('#height-example').equalize();
Equalize will accept any of the jQuery Dimension methods: height, outerHeight, innerHeight, width, outerWidth, innerWidth.
$('.parent').equalize('height'); // default, same as above
$('.parent').equalize('outerHeight');
$('.parent').equalize('innerHeight');
$('.parent').equalize('width');
$('.parent').equalize('outerWidth');
$('.parent').equalize('innerWidth');
Equalize will now accept a settings object to get the "minimum max dimension". By setting reset to true the height/width will be removed before determining the max. See the advanced example below.
$('.parent').equalize({reset: true}); // default to height
$('.parent').equalize({equalize: 'width', reset: true});
This advanced usage is for dynamic instances where equalize is ran after elements are added or removed to maintain minimum max height or width.
Equalize the .parent's child element. See @larsbo's example.
$('.parent').equalize({children: 'p'}); // equalize height of paragraphs within .parent
$('#height-example').equalize(); // defaults to height
$('#width-example').equalize('width');
$('#height-example').equalize({reset: true});
Below the tallest div has a height of 200px, this will be removed before determining the max height, otherwise all elements would have a height of 200px.