单击md-autocomplete（Angular Material）的“X”时调用函数

Question

How can I call a function (defined by me) when clicking on the cross (X) that clears the text of Angular Material's autocomplete?

[Link to md-autocomplete] ( https://material.angularjs.org/latest/demo/autocomplete )

Answer 1

There is no direct click event for the clearance button of md-autocomplete but you can detect when the text gets cleared using the md-search-text-change event:

function searchTextChange(text) {
  if (!text) {
    console.log("text got cleared")
  }
}