カレンダーを作る
目的
今月のカレンダーを作りたい
プログラム
<!-- HTML -->
<div id="cale"></div>
// JavaScript
function calendar(id){
let now = (new Date)
let m = now.getMonth()
let y = now.getFullYear()
let d = new Date(y, m, 1)
let str = `<h2>${m+1}月のカレンダー</h2>`
str += "<table><tr>"
for(let i = 0; i <= 6; i++){
str += `<th>${["日", "月", "火", "水", "木", "金", "土"][i]}</th>`
}
for(let i = 0; i < d.getDay(); i++){
str += "<td></td>"
}
for(let i = 0; i < 31; i++){
if(d.getDay() == 0){
str += "</tr><tr>"
}
str += `<td>${d.getDate()}</td>`
d.setDate(d.getDate() + 1)
if(d.getMonth() != m){
break
}
}
for(let i = d.getDay(); i <= 6; i++){
str += "<td></td>"
}
str += "</tr></table>"
cale.innerHTML = str
}
calendar(cale)
/* CSS */
th:nth-child(1), td:nth-child(1) {
background: #F44336;
color:white;
}
th, td{
text-align: center;
}
th:nth-child(7), td:nth-child(7) {
background: #2196F3;
color:white;
}