如何在JavaScript中使用解构—在将传递给React组件的辅助函数中？

Question

I have this component which takes an id as an attribute:

<TeamLogo id={team.id} className="center" />

As you can see its a property attached to an object.

So what I came up with is:

/* helper function */

  function TeamIdChecker({ id }) {
      if (id === undefined) return <Redirect to="/" />;
      else return team.id;
  }

And then i'd like to use it like this:

<TeamLogo id={TeamIdChecker(team.id)} className="center" />

I didn't try it as I know I'm off!

Thanks my friends in advance!

Update This is my Team component:

import { Component } from "react";
import PropTypes from "prop-types";
import { getTeam } from "../api";

export default class Team extends Component {
  static propTypes = {
    id      : PropTypes.string.isRequired,
    children: PropTypes.func.isRequired
  };
  state = {
    team: null
  };
  componentDidMount() {
    this.fetchTeam(this.props.id);
  }
  componentWillReceiveProps(nextProps) {
    if (this.props.id !== nextProps.id) {
      this.fetchTeam(nextProps.id);
    }
  }
  fetchTeam = id => {
    this.setState(() => ({ team: null }));
    getTeam(id).then(team => this.setState(() => ({ team })));
  };
  render() {
    return this.props.children(this.state.team);
  }
}

This is my TeamLogo component:

import React from "react";
import PropTypes from "prop-types";

const logos = {
  // logo key and values
};

TeamLogo.propTypes = {
  id: PropTypes.string.isRequired
};

TeamLogo.defaultProps = {
  width: "200px"
};

export default function TeamLogo(props) {
  return (
    <svg {...props} x="0px" y="0px" viewBox="0 0 125.397 125.397">
      {logos[props.id]}
    </svg>
  );
}

Answer 1

You don't want that <Redirect to="/" /> to be passed as a property to TeamLogo , right? I'd just use

if (team.id === undefined)
  return <Redirect to="/" />;
else
  return <TeamLogo id={team.id} className="center" />

Answer 2

You could do some conditional rendering

function TeamIdChecker({ id }) {
  if (id === undefined) return false;
  else return true;
}

then

render() { // where your rendering your component
    const { id } = team; // wherever that come from, you destruct it here
    return(
        <React.Fragment>
                {TeamIdChecker(id) ? <TeamLogo id={id} className="center" /> : <Redirect to="/" />}
        </React.Fragment>
    )
}

edit:

or even simpler if this helper function its only used here

render() { // where your rendering your component
    const { id } = team; // wherever that come from, you destruct it here
    return(
        <React.Fragment>
                {id !== undefined ? <TeamLogo id={id} className="center" /> : <Redirect to="/" />}
        </React.Fragment>
    )
}