javascript - `Uncaught SyntaxError: Unexpected token )` 根据 Chrome 的控制台

Question

这个右括号怎么出乎意料？

function pollCreateOptions_addOption ()
{ // Opening of curly bracket 1
    var highestN = 0;

    $('table#options tr td fieldset').each
    ( // Opening of normal bracket 1
        function (i, option)
        { // Opening of curly bracket 2
            alert (this.attr ('name'));
        { // Closing of curly bracket 2
    ); // Closing of normal bracket 1
} // Closing of curly bracket 1

Answer 1

$('table#options tr td fieldset').each
    ( 
        function (i, option)
        { 
            alert (this.attr ('name'));

        } // not {
    );

Answer 2

你应该在这里使用关闭}而不是打开{：{ // Closing of curly bracket 2

function pollCreateOptions_addOption ()
{ // Opening of curly bracket 1
    var highestN = 0;

    $('table#options tr td fieldset').each
    ( // Opening of normal bracket 1
        function (i, option)
        { // Opening of curly bracket 2
            alert (this.attr ('name'));
        } // Closing of curly bracket 2
    ); // Closing of normal bracket 1
} // Closing of curly bracket 1