Question

编码到我的html中的javascript无效。它应该找到列出的球员中最好的，然后警告谁是最好的。当我运行它时，所有HTML和CSS方面都显示，但没有警报。请帮忙。它可能只是语法错误或其他什么，但请继续帮助！这是代码：

<script>
            var players = [
                {name: "Pat Moran", overall: 67, position: 1},
                {name: "Peter Webb", overall: 81, position: 1},
                {name: "Ramiro Ramirez", overall: 74, position: 1}
            ];

            function findBestPlayer() {
                var bestSoFar = 0;
                var bestPlayer;
                for (var i = 0; i < players.length; i++) {
                    if (players[i].overall > bestSoFar) {
                        bestPlayer = players[i];
                        bestSoFar = players[i].overall;
                    }
                }
                return best;
            }

            var bestPlayer = findBestPlayer();
            alert("Best player is " + bestPlayer.name + " with an overall of " + bestPlayer.overall ;
        </script>

Answer 1

return best;未定义 - 在该位置使用return bestPlayer;，并在警报结束后包含大括号

Answer 2

            var players = [
                {name: "Pat Moran", overall: 67, position: 1},
                {name: "Peter Webb", overall: 81, position: 1},
                {name: "Ramiro Ramirez", overall: 74, position: 1}
            ];

            function findBestPlayer() {
                var bestSoFar = 0;
                var bestPlayer;
                for (var i = 0; i < players.length; i++) {
                    if (players[i].overall > bestSoFar) {
                        bestPlayer = players[i];
                        bestSoFar = players[i].overall;
                    }
                }

                return bestPlayer;
            }

            var bestPlayer = findBestPlayer();
            alert("Best player is " + bestPlayer.name + " with an overall of " + bestPlayer.overall) ;

警报功能缺少右括号。编辑：更正了bestPlayer而不是最佳。感谢跑步者和约瑟夫。

Answer 3

我正在回答这个问题，所以我无法调试它，但是在函数findBestPlayer中你返回的最好而不是bestPlayer。

Answer 4

此处最好没有定义并且在警告中缺少括号

 var players = [
                {name: "Pat Moran", overall: 67, position: 1},
                {name: "Peter Webb", overall: 81, position: 1},
                {name: "Ramiro Ramirez", overall: 74, position: 1}
            ];

            function findBestPlayer() {
                var bestSoFar = 0;
                var bestPlayer;
                for (var i = 0; i < players.length; i++) {
                    if (players[i].overall > bestSoFar) {
                        bestPlayer = players[i];
                        bestSoFar = players[i].overall;
                    }
                }
                return bestPlayer;
            }
          var bestPlayer = findBestPlayer();
            alert("Best player is " + bestPlayer.name + " with an overall of " + bestPlayer.overall) ;

编码的Javascript无效

4 个答案: