Question

I’m normally a jQuery developer and have to work on an extJs Project.
It’s the ExtCore v. 3.1.0 without any extensions (and an update isn’t possible yet)

So now my problem…
I need something similar to this jQuery Code:

$(document).on('focusin', 'input[type="text"]', function(event){
  $(this).empty();
});

But I can’t find anything to add Eventlistneres to multiple elements.
Is that possible with just the extCore?

Thanks in advance.

Answer 1

You can use addListener with delegate (or use on which is a shorthand for addListener):

Appends an event handler to this element. The shorthand version on is
equivalent.

The delegate is a simple selector to filter the target or look for a descendant of the target.

For example:

var el = Ext.getBody();
el.on('click', function (event, elem) {
   .
   .
   .
},
this, {
    delegate: 'input[type="text"]'
});