Question

前段时间，这里的人们非常熟悉代码。现在我的任务是添加一个小函数：

我真的很想数一下在选秀中定义的中奖号码。

有人可以解释/编辑代码，在最后一列后面添加一个额外的列，其中包含绿色/中奖号码的总数吗？

以下是网站：http://www.coldcharlie.nl/lotto/

以下是代码：

HTML

<script type="text/javascript" src="../lotto/lotto.js"></script>

<div id="players"></div>
<div id="draws"></div>

的JavaScript

(function() {

 var players = {
    Joop   : ["6","8","16","18","26","28","32","36","38","41"],
    Marijke: ["7","10","14","18","24","29","30","34","39","40"],
    Michel : ["4","5","11","16","21","27","33","36","42","44"],
    Mario  : ["6","9","18","25","32","35","39","40","43","45"],
    Diana  : ["2","6","8","17","22","23","33","36","42","45"],
    Agnes  : ["3","5","10","15","26","29","32","37","41","44"],
    Chris  : ["5","7","8","9","11","12","16","28","30","32"],
    Jeannette: ["1","2","4","7","8","11","13","28","30","38"],
    Wieger: ["1","2","3","7","10","13","14","22","23","27"],
    Anita: ["6","13","15","17","21","26","32","33","43","45"],
    Thea: ["1","3","5","7","10","17","19","20","22","38"],
    Danny: ["3","7","11","15","22","28","32","37","40","43"],
    Cindy: ["2","4","16","18","21","24","33","38","41","44"],
    Hanneke: ["1","3","4","12","18","21","25","30","36","40"],
    Willem: ["3","9","17","21","27","33","35","39","41","42"]
},

draws = [
    {
    when: 'Datum: Zaterdag 08-08-2009',
          picks:[2, 13, 15, 18, 21, 41]
    },

    {
    when: 'Datum: Zaterdag 15-08-2009',
      picks:[6, 19, 24, 25, 35, 37]
    },

    {
    when: 'Datum: Zaterdag 22-08-2009',
      picks:[8, 17, 23, 26, 37, 42]
    },

{
    when: 'Datum: Zaterdag 29-08-2009',
      picks:[1, 11, 31, 39, 42, 43]
    }
];



var buildPlayers = function(){
    var cont = $("#players"), table = $('<table></table>');
    for( player in players ){
    if ( players.hasOwnProperty( player ) ) {
        var tr = $('<tr><th>' + player + '</th></tr>').appendTo(table),
            len = players[player].length;

        for ( var i = 0; i < len; i++) {
            var td = $('<td/>') 
     td.addClass("loss")
    .addClass("pick_" + players[player][i]) // add the class to the td  
    .text( players[player][i] )
    .appendTo ( tr );

    }

        cont.append( table );
    }
    }
};

var buildDraws = function(){
    var cont = $("#draws");
    for(var i = 0; i < draws.length; i++){
    var html = ["<div class='draw'>","<h4 class='drawNum'>Trekking "+(i+1)+"</h3></p>","<div class='date'>"+draws[i].when+"</div>","<ol class='picks'>"];

    for(var j = 0; j < draws[i].picks.length; j++) {
        var img = '<img src="http://www.lotto.nl/static/images/ballen/lotto/l'
        + draws[i].picks[j]
        + '.jpg" alt="'
        + draws[i].picks[j]
        + '" />';
        html.push("<li>"+img+"</li>");
        showWin(draws[i].picks[j]);
    }



    html.push("</ol>","</div>");
    cont.append(html.join(""));
    }
};

var showWin = function(winNum){
    $(".pick_"+winNum).removeClass("loss").addClass("win");
};


$(function(){
    buildPlayers();
    buildDraws();
    });

})();

Answer 1

哦，我记得最后一次工作：p

更新了buildPlayers功能：

var buildPlayers = function(){
    var cont = $("#players"), table = $('<table></table>');
    for( player in players ){
    if ( players.hasOwnProperty( player ) ) {
        var tr = $('<tr><th>' + player + '</th></tr>').appendTo(table),
            len = players[player].length;

        for ( var i = 0; i < len; i++) {
            var td = $('<td/>') 
     td.addClass("loss")
    .addClass("pick_" + players[player][i]) // add the class to the td  
    .text( players[player][i] )
    .appendTo ( tr );

    }

    **var winning = $('<td>').addClass('winning-col').appendTo(tr);**

        cont.append( table );
    }
    }
};

更新了调用：

$(function(){
    buildPlayers();
    buildDraws();
    function countWinning() {
    $('#players table tr').each(function() {
        var winning = $('td.win', this), total = 0;
        winning.each(function(i,num) {
        total+= parseInt( $(this).text(), 10);
        });
        $('.winning-col', this).text(total).css('color', 'pink');
    });
    }
    countWinning();
});

说明：您基本上遍历每一行，在每个表行调用的函数内，计算所有中奖号码并计算它们，然后将总数附加到获胜列的最后一个表格单元格。

如何使用JavaScript添加和计算“总计”列？

HTML

的JavaScript

1 个答案: