reactjs - Redux relation between component, container and mapDispatchToProps,mapDispatchToProps -

i read presentational , container components , smart , dumb components in react

and concept :

components “dumb” react components ;   containers “smart” react components ;   

but did not mention mapdispatchtoprops , mapdispatchtoprops

is means should state , action container , not use mapdispatchtoprops , mapdispatchtoprops in components???
or means can use mapdispatchtoprops not use mapdispatchtoprops in components???

i felt confused component, container concept

a presentational component defines how things , shouldn't connected store. here example of presentational/dumb component:

import react "react" import styles "./styles.css"  const todolist = ({ todos, removetodo }) => (   <div classname={ styles.todolist }>     { ... }   </div> )  export default todolist 

a container defines how things work , shouldn't put dom markup or styles in kind of component. it's connected store , provides data presentational/dumb components. here example of container/smart component:

import { connect } "react-redux" import { removetodo } "actions/todos" import todolist "components/todolist"  const mapstatetoprops = (state) => ({   todos: state.todos, })  const mapdispatchtoprops = (dispatch) => ({   removetodo(todoid) {     dispatch(removetodo(todoid))   }, })  const todolistcontainer = connect(   mapstatetoprops,   mapdispatchtoprops )(todolist)  export default todolistcontainer 

so, answer question, shouldn't use mapstatetoprops , mapdispatchtoprops in presentational/dumb components.