javascript 在javascript下拉菜单中自动生成年份
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to generate years automatically in javascript dropdown
提问by user2935177
I created javascript that generates years used in my dropdown menu. I want to display current year and future years automatically. Does anyone know how to implement this?
我创建了 javascript，它生成在我的下拉菜单中使用的年份。我想自动显示当前年份和未来年份。有谁知道如何实现这一点？
<select id="selectElementId"></select>
<script>
var min = 2012,
max = 2021,
select = document.getElementById('selectElementId');
for (var i = min; i<=max; i++){
var opt = document.createElement('option');
opt.value = i;
opt.innerHTML = i;
select.appendChild(opt);
}
</script>
回答by Guilherme Sehn
Use Date.getFullYear. Example:
使用Date.getFullYear. 例子：
var min = new Date().getFullYear(),
max = min + 9
Fiddle: http://jsfiddle.net/t8fdh/
回答by Calvin
You basically have it there already?
你基本上已经在那里了吗？
See fiddle. http://jsfiddle.net/feedmeastraydog/5raMT/
见小提琴。http://jsfiddle.net/feedmeastraydog/5raMT/
var min = new Date().getFullYear();
max = min + 20;
select = document.getElementById('selectElementId');
for (var i = min; i<=max; i++){
var opt = document.createElement('option');
opt.value = i;
opt.innerHTML = i;
select.appendChild(opt);
}
select.value = new Date().getFullYear();
回答by Lee Taylor
Simply use new Date().getFullYear()to get the current year:
只需使用new Date().getFullYear()即可获取当前年份：
var min = new Date().getFullYear();
var max = min + 20;
