如何监听并响应 Ace Editor 更改事件

Question

任何人都可以举一个例子，说明 on change 事件如何在 ACE Editor ( https://ace.c9.io/#nav=api&api=editor ) 中工作，当有 on change 事件时使用简单的getValue()并将新文本发送到 div？ 将不胜感激，因为除了文档之外没有关于如何使用 Ace Editor 的教程。 谢谢

Answer 1

见https://jsfiddle.net/ralf_htp/hbxhgdr1/和http://jsfiddle.net/revathskumar/rY37e/

html

<div class="container">
  <div class="panel panel-default">
    <div class="panel-heading">
      <h3 class="panel-title">Editor</h3>
    </div>
    <div class="panel-body">
      <a href="#" onclick="update()">go</a>
      <div id="editor" onChange="update()">function foo(items) { var x = "All this is syntax highlighted"; return x; }
      </div>
    </div>
  </div>
  <div id="output">Output is here (click 'go' and write HTML and js in the editor) </div>
  <div class="text-center">---End of editor---</div>
</div>

javascript

var editor = ace.edit("editor");
editor.setTheme("ace/theme/monokai");
editor.getSession().setMode("ace/mode/javascript");
editor.getSession().on('change', function() {
  update()
});

function update() //writes in <div> with id=output
{
  var val = editor.getSession().getValue();
  var divecho = document.getElementById("output");
  divecho.innerHTML = val;
}

函数update()实现与编辑器关联的onChange事件。 如果点击go-link然后在编辑器中写入一个字符， update() 函数会在<div> id = output编辑器的内容， id = output as html (innerHTML)

css

#editor {
  /** Setting height is also important, otherwise editor wont showup**/
  height: 300px;
}

#output {
  height: 100px;
}

https://ace.c9.io/监听事件部分

另请参阅此线程ace editor onchange not working