如何在此自定义方法调用中检测到它是同一文件

我学习JavaScript React。

我有这种状态：

  state = { files: [] };

当我使用相同的prop两次调用此方法test时，在第二次调用中应为false时始终为true：

  someMethod() {
    const { newFile } = this.props;
    const { files } = this.state;
    let test = files.every((file) => newFile.size !== file.size);

    if (test) {
      const newList = files.concat({ newFile });
      this.setState({
        files: newList,
      });
    }
  }

在上面的代码中，newFile看起来像这样；

{
  source: "react:Dashboard",
  id: "uppy-/object/object/1612029328210-2r-10-2t-image/jpeg-42985-1612029045180",
  name: "[object Object]1612029328210",
  extension: "",
  meta: {
    relativePath: null,
    name: "[object Object]1612029328210",
    type: "image/jpeg",
  },
  type: "image/jpeg",
  data: {
  },
  progress: {
    percentage: 0,
    bytesUploaded: 0,
    bytesTotal: 42985,
    uploadComplete: false,
    uploadStarted: null,
  },
  size: 42985,
  isRemote: false,
  remote: "",
  preview: undefined,
}

如何newFile不添加就可以检测出它是相同的？