/Javascript/React/Cannot read properties of undefined (reading 'length') selectionlist react native

Cannot read properties of undefined (reading 'length') selectionlist react native

fetch('https://obscure-reaches-65656.herokuapp.com/api/getCloseTime?city=Hsinchu&sTime=18&eTime=21')
.then(r => r.json())
.then(r => {
  const movieData = r.reduce((r,s) => {
    r.push({title: s.theater, data: s.movie});
    return r;
  }, []);

  this.setState({ movieData });
});

Source: stackoverflow.com

Similar codes

0 vote191 views1 answer
React native cross out letter
Javascript React
1 vote205 views2 answers
React chartjs 2
Javascript React
1 vote207 views1 answer
Committing in react
Javascript React
8 votes222 views1 answer
Professional react projects
Javascript React
0 vote201 views1 answer
Mock a function jest react
Javascript React
0 vote169 views1 answer
Open xcode shorthand react native
Javascript React
0 vote288 views2 answers
Toastify react not working
Javascript React
0 vote220 views1 answer
React native diasble view
Javascript React
112 votes270 views10 answers
React
Javascript React
-2 votes200 views1 answer
How to identify debug and release build in react native
Javascript React