我有一个脚本可以找到那天、日期和年份。 但是两天它应该在当天下面说“我关闭”...... 这两天是“Søndag”和“Onsdag” 我试图做一个 if 语句，但它似乎不起作用:(
HTML
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>JS - Testing</title>
</head>
<body>
<b id="calendar-day"></b> -
<b id="calendar-date"></b>
<b id="calendar-month-year"></b>
<p></p>
</body>
<script src="main.js"></script>
</html>
JS
//function that gets the day and date
function calendar() {
var day = ['Søndag', 'Mandag','Tirsdag','Onsdag','Torsdag','Fredag','Lørdag'];
var month = ['Januar','Febuar','Marts','April','Maj','Juni','Juli','August','September','Oktober','November','December'];
var d = new Date();
setText('calendar-day', day[d.getDay()]);
setText('calendar-date', d.getDate());
setText('calendar-month-year', month[d.getMonth()]+' '+(1900+d.getYear()));
checkDay();
};
//function that sees if it's closing day
var paragraph = document.querySelector('p');
function checkDay() {
if (day == 'Onsdag') {
paragraph.innerText = 'I am closed';
}
}
function setText(id, val){
if(val < 10){
val = '0' + val; //add leading 0 if val < 10
}
document.getElementById(id).innerHTML = val;
};
window.onload = calendar;
最佳答案
可能您正在尝试这样做。您不能直接将 day 访问到 checkDay 函数中，而是需要将其作为参数传递，然后再传递。其次，你不能直接从 day 中提取一个值，因为它是一个数组，不是整数或字符串，所以你需要遍历数组才能找到正确的值
function calendar() {
var day = ['Søndag', 'Mandag','Tirsdag','Onsdag','Torsdag','Fredag','Lørdag'];
var month = ['Januar','Febuar','Marts','April','Maj','Juni','Juli','August','September','Oktober','November','December'];
var d = new Date();
var today = day[d.getDay()];
setText('calendar-day', today);
setText('calendar-date', d.getDate());
setText('calendar-month-year', month[d.getMonth()]+' '+(1900+d.getYear()));
checkDay(today);
};
//function that sees if it's closing day
var paragraph = document.querySelector('p');
function checkDay(day) {
if (day == 'Onsdag' || day == 'Søndag') {
paragraph.innerText = 'I am closed';
} else paragraph.innerText = 'I am opened';
}
function setText(id, val){
if(val < 10){
val = '0' + val; //add leading 0 if val < 10
}
document.getElementById(id).innerHTML = val;
};
window.onload = calendar;<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>JS - Testing</title>
</head>
<body>
<b id="calendar-day"></b> -
<b id="calendar-date"></b>
<b id="calendar-month-year"></b>
<p></p>
</body>
<script src="main.js"></script>
</html>关于javascript - 我正在努力争取那一天 - Javascript，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52402933/