jdh8/8char.js

## 8char.js
function 八字命學(stdlib)
{
	"use asm";

	function main()
	{
	}

	return main;
}

var 八字 = 八字命學(this);

八字();


if (!("valueAsDate" in HTMLInputElement.prototype)) {
	Object.defineProperty(HTMLInputElement.prototype, "valueAsDate", {
		get: function() { return new Date(this.value) },

		set: function(date) {
			switch (false) {
				case date instanceof Date:
					throw TypeError("Value being assigned to HTMLInputElement#valueAsDate must be a date.");
				default:
					this.value = date.toISOString().replace(/T.*/, "");
			}
		}
	})
}

document.querySelector("button").addEventListener("click", function()
{
	console.log(document.querySelector("input").valueAsDate);
});

## index.html
<html>
<head>
	<meta charset="UTF-8">
</head>
<body>
	<input>
	<button type="button">計算</button>
	<script src="8char.js"></script>
</body>
</html>
	function 八字命學(stdlib)
	{
	"use asm";

	function main()
	{
	}

	return main;
	}

	var 八字 = 八字命學(this);

	八字();


	if (!("valueAsDate" in HTMLInputElement.prototype)) {
	Object.defineProperty(HTMLInputElement.prototype, "valueAsDate", {
	get: function() { return new Date(this.value) },

	set: function(date) {
	switch (false) {
	case date instanceof Date:
	throw TypeError("Value being assigned to HTMLInputElement#valueAsDate must be a date.");
	default:
	this.value = date.toISOString().replace(/T.*/, "");
	}
	}
	})
	}

	document.querySelector("button").addEventListener("click", function()
	{
	console.log(document.querySelector("input").valueAsDate);
	});
	<html>
	<head>
	<meta charset="UTF-8">
	</head>
	<body>
	<input>
	<button type="button">計算</button>
	<script src="8char.js"></script>
	</body>
	</html>