Question

我的网页需要一些热键，只需一个热键。因此，我需要确定用户是否正在键入以应用热键。

Answer 1

您可以在文档正文上使用keypress事件

$(document.body).keypress(function(event){
  //do your stuff (event.keyCode tells you what's been pressed)
});

You can also consider using the jQuery plug-in for hotkeys.

Answer 2

你的意思是this？（当您按TAB键并且焦点位于页面上的任何位置时，它会发出警报）

$(document).keypress(function(event) {
    if (event.keyCode == 9) //TAB key
    {
        alert('this is the tab key!');
    }
});

Answer 3

jQuery(function($){
  $(window).keypress(function(e){ //alternatively look up the keydown and keyup functions
    switch (e.which)
    {
      case 13: //whatever key code you want to check for
      {
        //do stuff
      } return false; //prevent propagation of keypress event
      default:
      {
        //log the keycode to console so you can figure out which key is which
        //there are a number of tables of keycodes available online.
        if (window.console) console.log(e.which);
      } break;
    }
  });
});

请不要破坏您的用户体验：将您的权力用于良好或非常棒。

jquery找出用户是否正在打字

3 个答案: