跟踪鼠标位置

我希望跟踪鼠标光标的位置，周期性地每t秒。因此，从本质上讲，当一个页面加载时，这个跟踪器应该开始，(比如说)每100毫秒，我应该得到posX和posY的新值，并将其打印到表单中。

我尝试了下面的代码-但值不会刷新-只有posX和posY的初始值显示在表单框中。有什么办法能让它运行起来吗?

<html>
<head>
<title> Track Mouse </title>
<script type="text/javascript">
function mouse_position()
{
    var e = window.event;

    var posX = e.clientX;
    var posY = e.clientY;

    document.Form1.posx.value = posX;
    document.Form1.posy.value = posY;

    var t = setTimeout(mouse_position,100);

}
</script>

</head>

<body onload="mouse_position()">
<form name="Form1">
POSX: <input type="text" name="posx"><br>
POSY: <input type="text" name="posy"><br>
</form>
</body>
</html>

当前回答

基于ES6的代码

let handleMousemove = (event) => {
  console.log(`mouse position: ${event.x}:${event.y}`);
};

document.addEventListener('mousemove', handleMousemove);

如果你需要节流鼠标移动，使用这个:

let handleMousemove = (event) => {
  console.warn(`${event.x}:${event.y}\n`);
};

let throttle = (func, delay) => {
  let prev = Date.now() - delay;
  return (...args) => {
    let current = Date.now();
    if (current - prev >= delay) {
      prev = current;
      func.apply(null, args);
    }
  }
};

// let's handle mousemoving every 500ms only
document.addEventListener('mousemove', throttle(handleMousemove, 500));

这里有一个例子

2017-08-01 11:44:49

其他回答

这里有一个解决方案

document.onmousemove = showCoords;
function showCoords(event) {
var x = event.clientX;
var y = event.clientY;
var coords = "X coords: " + x + ", Y coords: " + y;
document.getElementById("box1").innerHTML = coords;
}

2021-05-27 08:43:11

基于ES6的代码

let handleMousemove = (event) => {
  console.log(`mouse position: ${event.x}:${event.y}`);
};

document.addEventListener('mousemove', handleMousemove);

如果你需要节流鼠标移动，使用这个:

let handleMousemove = (event) => {
  console.warn(`${event.x}:${event.y}\n`);
};

let throttle = (func, delay) => {
  let prev = Date.now() - delay;
  return (...args) => {
    let current = Date.now();
    if (current - prev >= delay) {
      prev = current;
      func.apply(null, args);
    }
  }
};

// let's handle mousemoving every 500ms only
document.addEventListener('mousemove', throttle(handleMousemove, 500));

这里有一个例子

2017-08-01 11:44:49

[...document.querySelectorAll("*")].forEach(h => h.addEventListener("mousemove", function(event) {
    console.table({
        "mouse x": event.clientX,
        "mouse y": event.clientY
    });
}));

2022-05-01 03:22:57

下面是一个基于jQuery和鼠标事件监听器(这比常规轮询要好得多)的解决方案:

$("body").mousemove(function(e) {
    document.Form1.posx.value = e.pageX;
    document.Form1.posy.value = e.pageY;
})

2011-10-17 07:49:26

onmousemove = function(e){console.log("mouse location:", e.clientX, e.clientY)}

打开控制台(Ctrl+Shift+J)，复制粘贴上面的代码，并在浏览器窗口上移动鼠标。

2015-12-18 03:55:58

跟踪鼠标位置

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