用 javascript 呼叫按键

Question

I am trying to press tab and enter key through javascript/jquery on page load.我试图在页面加载时通过 javascript/jquery 按下制表符并输入键。

like:喜欢：

  if(event.keyCode == 13){
    $("#submit").click();
  }

this would only work when user presses the enter key but I want the javascript to do this stuff for the user on page load.这仅在用户按下回车键时有效，但我希望 javascript 在页面加载时为用户执行此操作。

Answer 1

You can simulate a keypress with this code:您可以使用以下代码模拟按键：

function simulateKeyPress(character) {
  jQuery.event.trigger({ type : 'keypress', which : character.charCodeAt(0) });
}

thanks to this thread: Is it possible to simulate key press events programmatically?感谢这个线程：是否可以以编程方式模拟按键事件？

but as Ghyath Serhal pointed out, there might be a better way than to simulate a keypress to then catch it by your same code.但正如 Ghyath Serhal 指出的那样，可能有比模拟按键然后用相同的代码捕获它更好的方法。

Answer 2

Check the below if it helps如果有帮助，请检查以下内容

<body onload="$('#submit').click();"></body>

用 javascript 呼叫按键

问题描述

2 个解决方案

解决方案1
3 已采纳 2011-07-21 15:04:20

解决方案2
1 2011-07-21 14:59:29

用 javascript 呼叫按键

问题描述

2 个解决方案

解决方案1 3 已采纳 2011-07-21 15:04:20

解决方案2 1 2011-07-21 14:59:29

解决方案1
3 已采纳 2011-07-21 15:04:20

解决方案2
1 2011-07-21 14:59:29