import {Conditional, If, Else} from 'react-rendering-conditional';
 
  <Condition>
    <If is={this.state.authenticated}>
      If condition
    </If>
    <Else>
      Else Condition
    </Else>
  </Condition>

  import {Conditional, If, Else, ElseIf} from 'react-rendering-conditional';
 
  <Condition>
    <If is={false}>
      If condition
      <Condition>
        <If is={false}>
          Nested If condition
        </If>
        <Else>
          Nested Else Condition
        </Else>
      </Condition>
    </If>
    <ElseIf is={false}>
      Else If condition
    </ElseIf>
    <Else>
      Else Condition
    </Else>
  </Condition>