A very simple full text search for hiding/showing elements on a page that requires jQuery

example.js

var QuickAndDirtySearch = new QuickAndDirtySearchController($('#myTable tbody tr'), $('#searchBox'));

QuickAndDirtySearchController.js

function QuickAndDirtySearchController(elements, searchBox) {
	var instance = this;
	instance.elements = elements;
	instance.searchBox = searchBox;

	instance.elements.each(function(){
		var el = $(this);
		var text = instance.recursiveText(el);
		el.data('searchText', text);
	});


	instance.searchBox.on('keyup', function(){
		var val = $(this).val();
		instance.search(val);
	});
};

QuickAndDirtySearchController.prototype.search = function(text) {
	var instance = this;
	instance.elements.each(function(){
		var el = $(this);
		if(el.data('searchText').indexOf(text.toLowerCase()) != -1) {
			el.show();
		} else {
			el.hide();
		}
	});
};

QuickAndDirtySearchController.prototype.recursiveText = function(el) { 
	var instance = this;
	var fullText =[];
	var children = el.children();
	if(children.length) {
		children.each(function(){ 
			fullText.push(instance.recursiveText($(this))); 
		}); 
		return fullText.join(' ');
	} else {
		return el.text().toLowerCase();
	}
}