访问父母的财产

Question

嗨我需要更改mouseMove属性onMouseMove但我无法访问myfunc对象,因为这是指el而不是父亲!!

function myfunc (el) {
  this.el  = el;
  this.mousemove = false;

  el.onmousemove = function(){
      this.mousemove = true;
  };
}

Answer 1

只需存储一个引用this,无论你想要什么,都可以调用它.通常使用that或self:

function myfunc(el) {
  var that;
  that = this;
  this.el = el;
  this.mousemove = false;
  el.mousemove = function () {
    that.mousemove = true;
  };
}