常规JavaScript可以与jQuery混合使用吗?

问题描述:

例如,我可以使用此脚本(来自mozilla教程):

For example, can I take this script (from mozilla tutorial):

<html>
 <head>
  <script type="application/javascript">
    function draw() {
      var canvas = document.getElementById("canvas");
      if (canvas.getContext) {
        var ctx = canvas.getContext("2d");

        ctx.fillStyle = "rgb(200,0,0)";
        ctx.fillRect (10, 10, 55, 50);

        ctx.fillStyle = "rgba(0, 0, 200, 0.5)";
        ctx.fillRect (30, 30, 55, 50);
      }
    }
  </script>
 </head>
 <body onload="draw();">
   <canvas id="canvas" width="150" height="150"></canvas>
 </body>
</html>

并将此JavaScript与jQuery的document.ready混合而不是依赖于onload?

and mix this JavaScript with jQuery's document.ready instead of relying on onload?

是的,他们 JavaScript,你可以使用适合这种情况的任何功能。

Yes, they're both JavaScript, you can use whichever functions are appropriate for the situation.

在这种情况下,您可以将代码放在 document.ready 处理程序中,如下所示:

In this case you can just put the code in a document.ready handler, like this:

$(function() {
  var canvas = document.getElementById("canvas");
  if (canvas.getContext) {
    var ctx = canvas.getContext("2d");

    ctx.fillStyle = "rgb(200,0,0)";
    ctx.fillRect (10, 10, 55, 50);

    ctx.fillStyle = "rgba(0, 0, 200, 0.5)";
    ctx.fillRect (30, 30, 55, 50);
  }
});