Question

我想在文档之外准备好show函数。如果时间等于零，它必须向我显示正确和错误。但我得到一个错误**未捕获TypeError：无法读取未定义的属性'indexOf'**

$(document).ready(function() {

    droppableId = $(this)[0].id;
    draggableId = ui.draggable[0].id;

    var show = function(ui, droppableId, draggableId) {
        if (wordMap[droppableId].indexOf(draggableId) != -1) {
            ui.draggable.removeClass("ui-state-right").addClass("ui-state-right");
        } else {
            ui.draggable.removeClass("ui-state-right").addClass("ui-state-wrong");
        }
    }
});


var seconds = 60;

function secondPassed() {

    var minutes = Math.round((seconds - 30) / 60),
        remainingSeconds = seconds % 60;

    if (remainingSeconds < 10) {
        remainingSeconds = "0" + remainingSeconds;
    }

    document.getElementById('countdown').innerHTML = minutes + ":" + remainingSeconds;

    if (seconds == 00) {
        clearInterval(countdownTimer);
        document.getElementById('countdown').innerHTML = "0:00";

        if (corrects >= 4) {
            $("#successAlert").show();
            $("#startAgainGameBtn").show();
        } else {
            $("#resultBtn").prop('disabled', true);
            show();
            $("#getSol").show();
        }

    } else {
        seconds--;
    }
}


var countdownTimer = setInterval('secondPassed()', 1000);

Answer 1

尝试使用此代码，因为在代码中您没有将变量传递给函数，因此未定义错误。这样变量就可以直接在函数中使用了。然而，这是未经测试的，因为没有任何html可以测试。

$(document).ready(function() {

    var droppableId = $(this)[0].id;
    var draggableId = ui.draggable[0].id;

    window.show = function() {
        if (wordMap[droppableId].indexOf(draggableId) != -1) {
            ui.draggable.removeClass("ui-state-right").addClass("ui-state-right");
        } else {
            ui.draggable.removeClass("ui-state-right").addClass("ui-state-wrong");
        }
    }
});


var seconds = 60;

function secondPassed() {

    var minutes = Math.round((seconds - 30) / 60),
    remainingSeconds = seconds % 60;

    if (remainingSeconds < 10) {
        remainingSeconds = "0" + remainingSeconds;
    }

    document.getElementById('countdown').innerHTML = minutes + ":" + remainingSeconds;

    if (seconds == 00) {
        clearInterval(countdownTimer);
        document.getElementById('countdown').innerHTML = "0:00";

        if (corrects >= 4) {
            $("#successAlert").show();
            $("#startAgainGameBtn").show();
        } else {
            $("#resultBtn").prop('disabled', true);
            window.show();
            $("#getSol").show();
        }

    } else {
        seconds--;
    }
}


var countdownTimer = setInterval('secondPassed()', 1000);

未捕获的TypeError：无法读取未定义的属性'indexOf'

1 个答案: