<cn>
#### 确认对话框(promise)
使用 `confirm()` 可以快捷地弹出确认框。onCancel/onOk 返回 promise 可以延迟关闭
</cn>

<us>
#### Confirmation modal dialog use promise
To use `confirm()` to popup confirmation modal dialog. Let onCancel/onOk function return a promise object to
delay closing the dialog.
</us>

```tpl
<template>
  <a-button @click="showConfirm">
    Confirm
  </a-button>
</template>
<script>
  export default {
    methods: {
      showConfirm() {
        this.$confirm({
          title: 'Do you want to delete these items?',
          content: 'When clicked the OK button, this dialog will be closed after 1 second',
          onOk() {
            return new Promise((resolve, reject) => {
              setTimeout(Math.random() > 0.5 ? resolve : reject, 1000);
            }).catch(() => console.log('Oops errors!'));
          },
          onCancel() {},
        });
      },
    },
  };
</script>
```