Autocomplete: Optimize element type checks for speed and size.

Author: scottgonzalez

ui/jquery.ui.autocomplete.js

@@ -54,10 +54,21 @@ $.widget( "ui.autocomplete", {
 		// so we use the suppressKeyPressRepeat flag to avoid handling keypress
 		// events when we know the keydown event was used to modify the
 		// search term. #7799
-		var suppressKeyPress, suppressKeyPressRepeat, suppressInput;
-
-		this.isMultiLine = this._isMultiLine();
-		this.valueMethod = this.element[ this.element.is( "input,textarea" ) ? "val" : "text" ];
+		var suppressKeyPress, suppressKeyPressRepeat, suppressInput,
+			nodeName = this.element[0].nodeName.toLowerCase(),
+			isTextarea = nodeName === "textarea",
+			isInput = nodeName === "input";
+
+		this.isMultiLine =
+			// Textareas are always multi-line
+			isTextarea ? true :
+			// Inputs are always single-line, even if inside a contentEditable element
+			// IE also treats inputs as contentEditable
+			isInput ? false :
+			// All other element types are determined by whether or not they're contentEditable
+			this.element.prop( "isContentEditable" );
+
+		this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ];
 		this.isNewMenu = true;
 
 		this.element
@@ -341,20 +352,6 @@ $.widget( "ui.autocomplete", {
 		return element;
 	},
 
-	_isMultiLine: function() {
-		// Textareas are always multi-line
-		if ( this.element.is( "textarea" ) ) {
-			return true;
-		}
-		// Inputs are always single-line, even if inside a contentEditable element
-		// IE also treats inputs as contentEditable
-		if ( this.element.is( "input" ) ) {
-			return false;
-		}
-		// All other element types are determined by whether or not they're contentEditable
-		return this.element.prop( "isContentEditable" );
-	},
-
 	_initSource: function() {
 		var array, url,
 			that = this;