momentjs - fromNow()方法在通用(同构)js应用程序

momentjs - fromNow() method in universal (isomorphic) js app

本文关键字：同构 应用程序 js 方法 fromNow momentjs      更新时间：2023-09-26

我有一个用node.js和react.js构建的应用程序，它是通用的(或以前称为"同构的")，并与REST API交谈以获取数据。

在某些组件的render方法中，我以2 days ago或few seconds ago等格式显示日期，在这种情况下，moment.js工作完美。我说的是它的方法fromNow()，例如:

render() {
  const { date } = this.props;
  const formattedDate = moment(date).fromNow();
  return (
    <div>{formattedDate}</div>
  );
}

但问题是:

Warning: React attempted to reuse markup in a container but the
checksum was invalid. This generally means that you are using server
rendering and the markup generated on the server was not what the
client was expecting. React injected new markup to compensate which
works but you have lost many of the benefits of server rendering.
Instead, figure out why the markup being generated is different on the
client or server:
(client) 0:0.2.1.0.1.0.3.2">14 minutes ago</div>
(server) 0:0.2.1.0.1.0.3.2">17 minutes ago</div>

我假设服务器时间和客户端时间可能不同，这就导致了问题。在这种情况下，最好的解决方案是什么?也许在API端而不是在应用程序端格式化日期是值得的?你的想法呢?

谢谢!

我有同样的问题与MomentJs。我选择了一个小的Javascript助手，一切都很好，我的同构组件…

1。组件 

  _fetch() {
    return this.props.store.dispatch(loadActs()).then(
      results => {
        const inclSeconds = true;
        this.setState({
          ...... 
          lastUpdate: formatAMPM(new Date(), inclSeconds).toString()
        })
      }
    )
  }

2。辅助效用

module.exports = {
    formatAMPM: (date, inclSecs=false) => {
        let hours = date.getHours();
        let minutes = date.getMinutes();
        let seconds = date.getSeconds();
        let ampm = hours >= 12 ? 'PM' : 'AM';
        let strTime= ''
        hours = hours % 12;
        hours = hours ? hours : 12; // the hour '0' should be '12'
        minutes = minutes < 10 ? '0'+ minutes : minutes;
        seconds = seconds < 10 ? '0'+ seconds : seconds;
        if (inclSecs) {
          strTime = hours + ':' + minutes + ':' + seconds + ' ' + ampm;
        } else {
          strTime = hours + ':' + minutes + ' ' + ampm;
        }
        return strTime;
      }
}
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