Initial commit

Author: martinille

jquery.deepest.js

@@ -0,0 +1,30 @@
+/**
+ * Get the deepest children of each element in the set of matched elements, optionally filtered by a selector.
+ */
+(function ($) {
+	$.fn.deepest = function (selector) {
+		let deepestLevel = 0,
+			$deepestChild,
+			$deepestChildSet;
+		
+		this.each(function () {
+			$parent = $(this);
+			$parent
+				.find((selector || '*'))
+				.each(function () {
+					if (!this.firstChild || this.firstChild.nodeType !== 1) {
+						let levelsToParent = $(this).parentsUntil($parent).length;
+						if (levelsToParent > deepestLevel) {
+							deepestLevel = levelsToParent;
+							$deepestChild = $(this);
+						} else if (levelsToParent === deepestLevel) {
+							$deepestChild = !$deepestChild ? $(this) : $deepestChild.add(this);
+						}
+					}
+				});
+			$deepestChildSet = !$deepestChildSet ? $deepestChild : $deepestChildSet.add($deepestChild)
+		});
+		
+		return this.pushStack($deepestChildSet || [], 'deepest', selector || '');
+	};
+}(jQuery));