dojo - dojo.byId()有效，但dijit.byId()不起作用

Question

我有一个ID为appointment_stylist_id的选择字段。由于某种原因，第一个返回我的元素，但是第二个返回undefined:

  console.log(dojo.byId('appointment_stylist_id'));
  console.log(dijit.byId('appointment_stylist_id'));

知道为什么吗？

Answer 1

这是因为dojo.byId完成了您想要的(找到具有特定ID的DOM元素)，而dijit.byId却没有做到。

dijit.byId is a function for looking up a specific widget by its assigned name (id). This function is similar to dojo.byId but whereas dojo.byId returns DOMNodes, dijit.byId returns a JavaScript object that is the instance of the widget.

...

dijit.byId and dojo.byId are often confused, particularly by first time users. This function should be used when you wish to obtain a direct handle the the JavaScript object instance of your widget and access functions of that widget.

http://dojotoolkit.org/reference-guide/dijit/byId.html

也可以看看

What the difference between dojo.byId and dijit.byId?