【代码】调色板

前言

前端调色板案例

源代码

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>调色板</title>
<script src="js/jquery.min.js"></script>
<style>
#board {
width: 300px;
height: 200px;
background: black;
}
</style>
</head>
<body>

<div id="board"></div>
<div>
<span>R:</span>
<input type="range" min="0" max="255" value="0">
<span>0</span>
</div>
<div>
<span>G:</span>
<input type="range" min="0" max="255" value="0">
<span>0</span>
</div>
<div>
<span>B:</span>
<input type="range" min="0" max="255" value="0">
<span>0</span>
</div>

<script>
let color = {
r: 0,
g: 0,
b: 0
};

$("input:eq(0)").on("input", function(){
$("input:eq(0)+span").html($(this).val());
color.r = $(this).val();
$("#board").css({
background: `rgb(${color.r},${color.g},${color.b})`
});
});
$("input:eq(1)").on("input", function(){
$("input:eq(1)+span").html($(this).val());
color.g = $(this).val();
$("#board").css({
background: `rgb(${color.r},${color.g},${color.b})`
});
});
$("input:eq(2)").on("input", function(){
$("input:eq(2)+span").html($(this).val());
color.b = $(this).val();
$("#board").css({
background: `rgb(${color.r},${color.g},${color.b})`
});
});

</script>

</body>
</html>

完成

参考文献

哔哩哔哩——web前端小清风