Function insert

06.Router/basic/js/vue.js:9161–9178

* Shared DOM insertion function. * * @param {Vue} vm * @param {Element} target * @param {Function} [cb] * @param {Boolean} [withTransition] * @param {Function} op1 - op for non-transition insert * @param {Function} op2 - op for transition insert * @return vm

(vm, target, cb, withTransition, op1, op2)

     */

    function insert(vm, target, cb, withTransition, op1, op2) {
      target = query(target);
      var targetIsDetached = !inDoc(target);
      var op = withTransition === false || targetIsDetached ? op1 : op2;
      var shouldCallHook = !targetIsDetached && !vm._isAttached && !inDoc(vm.$el);
      if (vm._isFragment) {
        mapNodeRange(vm._fragmentStart, vm._fragmentEnd, function (node) {
          op(node, target, vm);
        });
        cb && cb();
      } else {
        op(vm.$el, target, vm, cb);
      }
      if (shouldCallHook) {
        vm._callHook('attached');
      }
      return vm;
    }

    /**
     * Check for selectors