JSHandle.getProperties() 方法

获取一个表示当前句柄属性的句柄映射。

签名

class JSHandle {
  getProperties(): Promise<Map<string, JSHandle>>;
}

返回值：

Promise<Map<string, JSHandle>>

示例

const listHandle = await page.evaluateHandle(() => document.body.children);
const properties = await listHandle.getProperties();
const children = [];
for (const property of properties.values()) {
  const element = property.asElement();
  if (element) {
    children.push(element);
  }
}
children; // holds elementHandles to all children of document.body