错误是删除操作会导致页面重绘，因此您不能使用.each()。
.each()引用元素，但是重绘改变了元素，所以.each()失败。
使用for循环代替。

cy.get(selector).then($els => {
  const count = $els.length
  for (let index = 0; index < count; index++) {
    cy.get(selector)
      .eq(index)
      .then($el => $el[0].remove())
  }
})

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要将DOM元素转换为Cypress元素，可以使用cy.wrap() Package DOM元素，从而将其转换为Cypress对象。

Cypress.Commands.add('clearScheduleEditor', () => {
cy.get(getBySelector("schedule-editor")).find(".fc-event").should(() => {}).then($events => {
if ($events.length) {
  Cypress._.each($events, (event) => {
    const cypressEvent = cy.wrap(event); // Convert DOM element to Cypress element
    // Now you can use cypressEvent to perform Cypress actions on each event
    console.log(cypressEvent); // Just an example, replace with your delete logic
     })
    }
  })
})

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您需要 Cypress.$() 将DOM元素 Package 到JQuery对象中，您可以使用 cy.wrap() 将其转换为Cypress对象以执行click或删除事件所需的其他操作。上面的示例如下所示：

Cypress.Commands.add('clearScheduleEditor', () => {
    cy.get(getBySelector("schedule-editor")).find(".fc-event").should(() => {
    }).then($events => {
        if ($events.length) {
            Cypress._.each($events, (event, idx) => {
                console.log(event);
                // const $event = Cypress.$(event);
                // cy.wrap($event).click();
                cy.get(getBySelector("schedule-editor")).find(".fc-event").eq(idx).click();
                // Add any other actions required to delete the event
            });
        }
    });
});

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编辑：

Cypress.Commands.add('clearScheduleEditor', () => {
    cy.get(getBySelector("schedule-editor")).find(".fc-event").should(() => {
    }).then($events => {
        if ($events.length) {
            cy.get(getBySelector("schedule-editor")).find(".fc-event").then(($events) => {
                // Keep clicking and deleting the first event until no events are left
                while ($events.length > 0) {
                    cy.get(getBySelector("schedule-editor")).find(".fc-event").first().click();
                    // Add any other actions required to delete the event

                    // Recheck the events and update the $events variable
                    cy.get(getBySelector("schedule-editor")).find(".fc-event").then(($newEvents) => {
                        $events = $newEvents;
                    });
                }
            });
        }
    });
});

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