reactjs - NavLink in react-router-dom not clearing the previously loaded component data. -

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my index.js file this.

<provider store={createstorewithmiddleware(reducers)}>     <browserrouter>       <div>         <header title={"ibp"}/>         <div classname="container-fluid">           <route exact path="/" component={homepage} />           <route exact path="/observation/list" component={app} />         </div>          <footer />       </div>     </browserrouter>   </provider>  <header /> contain nav data.  <footer /> contain footer data

header contain link navigation this

<li classname="dropdown">           <a href="#" classname="dropdown-toggle" data-toggle="dropdown">observation <span classname="caret"></span></a>           <ul classname="dropdown-menu" role="menu">             <li><navlink to="/observation/list">observations</navlink></li>             <li><a href="#">checklists</a></li>             <li><a href="#">datasets</a></li>           </ul>         </li>

homepage component , app component have data show in between header component , footer component.

now question is:

if navigate between "/" , "/observation/list" store data component not clearing out. want once on "/observation/list" , here goes "/" through navlink in header component, data must clear out of app component.

anonymous behaviour:

if replace navlink href in header component everthing working fine.

i solve above problem using componentwillunmount method, going clear state once give componet unmount.

>  componentwillunmount(){ >         >        //clear page >  >       }

those using redux state manager, need create action creater, going set state value default value in reducers.





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