javascript - 无法弄清楚是什么导致了意外的 token 错误

Question

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已关闭 10 年前。

我在控制台中收到此错误

SyntaxError: Unexpected token '(' ... line 49

这是有问题的行:

 trackEnded: function() {

这是完整的代码，我只是不明白为什么会收到该错误？

// Initialize audio js
      $(document).ready(function($) {


              // Setup the player to autoplay the next track
              trackEnded: function() {
                  var next = $('.main article.playing').next();
                  if (!next.length) next = $('.main article').first();
                  next.addClass('playing').siblings().removeClass('playing');
                  audio.load($('.article-play', next).attr('data-src'));
                  audio.play();
                  $('.article-play', next).removeAttr('data-playa').attr("data-pausea", '5');
                  var nextPlay = $('.article-play', next);
                  $('.article-play').not(nextPlay).removeAttr('data-pausea').attr("data-playa", '4');
              }


          //Synchronize Main player with articles
          $(".audiojs .play-pause").click(function() {
              var element = $('.playing .article-play')
              var play = element.attr('data-playa')
              var pause = element.attr('data-pausea')
              if (play == '4') {
                  element.removeAttr('data-playa').attr("data-pausea", '5');
              } else if (pause == '5') {
                  element.removeAttr('data-pausea').attr("data-playa", '4');
              }
          })

          // Load in a track on click
          $('.article-play').click(function(e) {
              e.preventDefault();
              if ($(this).closest('article').hasClass('playing')) {
                  var play = $(this).attr('data-playa')
                  var pause = $(this).attr('data-pausea')
                  if (play == '4') {
                      $(this).removeAttr('data-playa').attr("data-pausea", '5');
                      $('.article-play').not($(this)).removeAttr('data-pausea').attr("data-playa", '4');
                      audio.play();
                  } else if (pause == '5') {
                      $(this).removeAttr('data-pausea').attr("data-playa", '4');
                      audio.pause();
                  }
              } else {
                  $(this).closest('article').addClass('playing').siblings().removeClass('playing');
                  audio.load($(this).attr('data-src'));
                  audio.play();
                  $(this).removeAttr('data-playa').attr("data-pausea", '5');
                  $('.article-play').not($(this)).removeAttr('data-pausea').attr("data-playa", '4');
              }
          });

          // Keyboard shortcuts
          $(document).keydown(function(e) {
              var unicode = e.charCode ? e.charCode : e.keyCode;
              // right arrow
              if (unicode == 39) {
                  var next = $('.main article.playing').next();
                  if (!next.length) next = $('.main article').first();
                  next.find('.article-play').click();
                  // back arrow
              } else if (unicode == 37) {
                  var prev = $('.main article.playing').prev();
                  if (!prev.length) prev = $('.main article').last();
                  prev.find('.article-play').click();
                  // spacebar
              } else if (unicode == 32 && document.activeElement.nodeName !== 'INPUT') {
                  audio.playPause();
                  var element = $('.playing .article-play')
                  var play = element.attr('data-playa')
                  var pause = element.attr('data-pausea')
                  if (play == '4') {
                      element.removeAttr('data-playa').attr("data-pausea", '5');
                  } else if (pause == '5') {
                      element.removeAttr('data-pausea').attr("data-playa", '4');
                  }
              }
          });
      });

Answer 1

您试图在函数作用域内编写对象语法，这是不正确的语法。

应该是:

function trackEnded() {
    // rest or your code