如果语句内部循环填充表jQuery

时间:2014-02-25 19:12:32

标签: javascript jquery loops if-statement

我正在使用jQuery填写时间表信息,信息以JSON格式提供。这是我正在使用的循环:

for (var i = 0; i < r.events.length; i++) {
  myvar = r.events[i].slot;
  $("#" + myvar).text( r.desc + r.events[i].type + r.events[i].rooms +
                       r.events[i].id + r.events[i].duration );

所以我需要在循环中插入if语句,如果事件的持续时间等于2,则循环填充单元格AND单元格+1。 (单元格命名为:wed09wed10wed11wed12wed13wed14wed15,{{ 1}},wed16thu09等等。)

我该怎么编码?

非常感谢

1 个答案:

答案 0 :(得分:1)

我认为最好的方法是拥有一个像这样的TimeTable类:

var TimeTable = function(currentCell) {
    var days = ["mon", "tue", "wed", "thu", "fri"];
    var hours = ["09", "10", "11", "12", "13", "14", "15", "16"];
    var currentDay = days.indexOf(currentCell.substring(0,3));
    var currentHour = hours.indexOf(currentCell.substring(3));
    // nextCell: updates the values on the TimeTable object
    var nextCell = function () {
        var lastDay = days.length - 1;
        if (currentHour === hours.length - 1) {
            currentHour = 0;
            currentDay++;
        } else {
            currentHour++;
        }
    }
    // getNextCell: gets the current Cell and increments the next cell
    getNextCell = function () {
        var currentCell = days[currentDay] + hours[currentHour];
        nextCell();
        return currentCell;
    }
    // fill: fills (duration) times the adjacent cells
    // input duration: the duration of the event ( > 0 )
    // input text: the text that needs to be filled into each cell 
    this.fill = function (duration, text) {
        for (var i = 0; i < duration; i++) {
            $("#" + getNextCell()).text(text);
        }
    }
}

由于你谈到的持续时间可能是2或更高,我在fill方法中使用了for循环而不是if,所以如果持续时间= 3等,则会填充3个单元格。

最后,您需要像这样替换for循环:

        for (var i = 0; i < r.events.length; i++) {
            var timeTable = new TimeTable(r.events[i].slot);
            text = r.desc + '\n' + r.events[i].type + '\n' + r.events[i].rooms + '\n' + r.events[i].id + r.events[i].duration;
            timeTable.fill(r.events[i].duration, text);
        }

代码位于this fiddle