--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/default/node_modules/shoestring/src/dom/val.js	Sat May 31 09:21:51 2025 +0800
@@ -0,0 +1,56 @@
+//>>excludeStart("exclude", pragmas.exclude);
+define([ "shoestring" ], function(){
+//>>excludeEnd("exclude");
+
+
+	/**
+	 * Get the value of the first element or set the value of all elements in the current set.
+	 *
+	 * @param {string} value The value to set.
+	 * @return shoestring
+	 * @this shoestring
+	 */
+	shoestring.fn.val = function( value ){
+		var el;
+		if( value !== undefined ){
+			return this.each(function(){
+				if( this.tagName === "SELECT" ){
+					var optionSet, option,
+						options = this.options,
+						values = [],
+						i = options.length,
+						newIndex;
+
+					values[0] = value;
+					while ( i-- ) {
+						option = options[ i ];
+						if ( (option.selected = shoestring.inArray( option.value, values ) >= 0) ) {
+							optionSet = true;
+							newIndex = i;
+						}
+					}
+					// force browsers to behave consistently when non-matching value is set
+					if ( !optionSet ) {
+						this.selectedIndex = -1;
+					} else {
+						this.selectedIndex = newIndex;
+					}
+				} else {
+					this.value = value;
+				}
+			});
+		} else {
+			el = this[0];
+
+			if( el.tagName === "SELECT" ){
+				if( el.selectedIndex < 0 ){ return ""; }
+				return el.options[ el.selectedIndex ].value;
+			} else {
+				return el.value;
+			}
+		}
+	};
+
+//>>excludeStart("exclude", pragmas.exclude);
+});
+//>>excludeEnd("exclude");