TypeError: Cannot read property 'length' of undefined
That's what the compiler says when I run my react app. What I do need to do with this?
request = (start,end) => {
if(this.state.teams.length < 1){
axios.get(`${ URL }/teams`)
.then( response => {
this.setState({
teams:response.data
})
})
}
axios.get(`${ URL }/articles?_start=${start}&_end=${end}`)
.then( response => {
this.setState({
items:[...this.state.items,...response.data]
})
})
}
this.state.teams
has a value.