Question

编辑：使用IF-ELSE语句解决

在我的'if'语句中，或者是||比较不起作用。我之前从这个网站得到了一个答案：这段代码：

if(answers.indexOf(userAnswer.toLowerCase()) !== -1 || answers2.indexOf(userAnswer.toLowerCase()) !== -1)

然而，这对我的目的不起作用（它会看到userAnswer是否在数组中，而如果第3个userAnswer与数组中的第3个答案匹配，我希望语句为真。）

这是我的代码：

var answers = ["hello", "my name is sam", "are you healthy?", "what is your name?", "how much does it cost?", "excuse me", "i'm sorry", "yes, i understand", "no, i don't understand", "just wait please", "where is the toilet?"];

var answers2 = ["hello", "my name is sam", "how are you?", "what's your name?", "how much is it?", "excuse me", "sorry", "yes, all right", "no, i don't understand", "wait, please", "where's the toilet?"];

var totalYes = 0;
var ct = 0;

$("#submmit").click(function() {
    function checkAnswers() {
        var userAnswer = document.getElementById("b" + ct).value.toLowerCase();
        /**aforementioned if statement or comparison wannabe on next line**/
        if (userAnswer === answers[ct]) {
            totalYes++;
            $("#correcto").show();
        } else {
            $("#incorrecto").show();
            if (answers[ct] !== answers2[ct]) {
                alert("The correct answer is " + "'" + answers[ct] + "'" + " or " + "'" + answers2[ct] + "'");
            } else {
                alert("The correct answer is " + "'" + answers[ct] + "'");
            }
        }
    }
    checkAnswers();
    ct++;
});

Answer 1

你是否尝试在OR的每一侧放置括号？

if(( answers.indexOf(userAnswer.toLowerCase()) !== -1 ) || (answers2.indexOf(userAnswer.toLowerCase()) !== -1 ) );

也许这可以解决它，我总是不确定js但它肯定不是错误

或者比较不起作用？

1 个答案: