function doAdd() {var argsLength = arguments.lengthif (argsLength === 0) {return 0} else if (argsLength === 1) {return arguments[0] + 10} else if (argsLength === 2) {return arguments[0] + arguments[1]}
}doAdd()  // 0
doAdd(5) // 15
doAdd(5, 20) // 25

function text() {var elem = this.elemvar argsLength = arguments.lengthif (argsLength === 0) {return elem.innerText} else if (argsLength === 1) {elem.innerText = arguments[0]}
}

// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {var i = 0,len = elems.length,bulk = key == null;// Sets many valuesif ( jQuery.type( key ) === "object" ) {chainable = true;for ( i in key ) {access( elems, fn, i, key[ i ], true, emptyGet, raw );}// Sets one value} else if ( value !== undefined ) {chainable = true;if ( !jQuery.isFunction( value ) ) {raw = true;}if ( bulk ) {// Bulk operations run against the entire setif ( raw ) {fn.call( elems, value );fn = null;// ...except when executing function values} else {bulk = fn;fn = function( elem, key, value ) {return bulk.call( jQuery( elem ), value );};}}if ( fn ) {for ( ; i < len; i++ ) {fn(elems[ i ], key, raw ?value :value.call( elems[ i ], i, fn( elems[ i ], key ) ));}}}return chainable ?elems :// Getsbulk ?fn.call( elems ) :len ? fn( elems[ 0 ], key ) : emptyGet;
};

text: function( value ) {return access( this, function( value ) {return value === undefined ?jQuery.text( this ) :this.empty().each( function() {if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {this.textContent = value;}} );}, null, value, arguments.length );
},html: function( value ) {return access( this, function( value ) {var elem = this[ 0 ] || {},i = 0,l = this.length;if ( value === undefined && elem.nodeType === 1 ) {return elem.innerHTML;}// See if we can take a shortcut and just use innerHTMLif ( typeof value === "string" && !rnoInnerhtml.test( value ) &&!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {value = jQuery.htmlPrefilter( value );try {for ( ; i < l; i++ ) {elem = this[ i ] || {};// Remove element nodes and prevent memory leaksif ( elem.nodeType === 1 ) {jQuery.cleanData( getAll( elem, false ) );elem.innerHTML = value;}}elem = 0;// If using innerHTML throws an exception, use the fallback method} catch ( e ) {}}if ( elem ) {this.empty().append( value );}}, null, value, arguments.length );
},

attr: function( name, value ) {return access( this, jQuery.attr, name, value, arguments.length > 1 );
},prop: function( name, value ) {return access( this, jQuery.prop, name, value, arguments.length > 1 );
},// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {var top = "pageYOffset" === prop;jQuery.fn[ method ] = function( val ) {return access( this, function( elem, method, val ) {var win = getWindow( elem );if ( val === undefined ) {return win ? win[ prop ] : elem[ method ];}if ( win ) {win.scrollTo(!top ? val : win.pageXOffset,top ? val : win.pageYOffset);} else {elem[ method ] = val;}}, method, val, arguments.length );};
} );css: function( name, value ) {return access( this, function( elem, name, value ) {var styles, len,map = {},i = 0;if ( jQuery.isArray( name ) ) {styles = getStyles( elem );len = name.length;for ( ; i < len; i++ ) {map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );}return map;}return value !== undefined ?jQuery.style( elem, name, value ) :jQuery.css( elem, name );}, name, value, arguments.length > 1 );
}// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },function( defaultExtra, funcName ) {// Margin is only for outerHeight, outerWidthjQuery.fn[ funcName ] = function( margin, value ) {var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );return access( this, function( elem, type, value ) {var doc;if ( jQuery.isWindow( elem ) ) {// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)return funcName.indexOf( "outer" ) === 0 ?elem[ "inner" + name ] :elem.document.documentElement[ "client" + name ];}// Get document width or heightif ( elem.nodeType === 9 ) {doc = elem.documentElement;// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],// whichever is greatestreturn Math.max(elem.body[ "scroll" + name ], doc[ "scroll" + name ],elem.body[ "offset" + name ], doc[ "offset" + name ],doc[ "client" + name ]);}return value === undefined ?// Get width or height on the element, requesting but not forcing parseFloatjQuery.css( elem, type, extra ) :// Set width or height on the elementjQuery.style( elem, type, value, extra );}, type, chainable ? margin : undefined, chainable );};} );
} );data: function( key, value ) {var i, name, data,elem = this[ 0 ],attrs = elem && elem.attributes;// Gets all valuesif ( key === undefined ) {if ( this.length ) {data = dataUser.get( elem );if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {i = attrs.length;while ( i-- ) {// Support: IE 11 only// The attrs elements can be null (#14894)if ( attrs[ i ] ) {name = attrs[ i ].name;if ( name.indexOf( "data-" ) === 0 ) {name = jQuery.camelCase( name.slice( 5 ) );dataAttr( elem, name, data[ name ] );}}}dataPriv.set( elem, "hasDataAttrs", true );}}return data;}// Sets multiple valuesif ( typeof key === "object" ) {return this.each( function() {dataUser.set( this, key );} );}return access( this, function( value ) {var data;// The calling jQuery object (element matches) is not empty// (and therefore has an element appears at this[ 0 ]) and the// `value` parameter was not undefined. An empty jQuery object// will result in `undefined` for elem = this[ 0 ] which will// throw an exception if an attempt to read a data cache is made.if ( elem && value === undefined ) {// Attempt to get data from the cache// The key will always be camelCased in Datadata = dataUser.get( elem, key );if ( data !== undefined ) {return data;}// Attempt to "discover" the data in// HTML5 custom data-* attrsdata = dataAttr( elem, key );if ( data !== undefined ) {return data;}// We tried really hard, but the data doesn't exist.return;}// Set the data...this.each( function() {// We always store the camelCased keydataUser.set( this, key, value );} );}, null, value, arguments.length > 1, null, true );
},