I would like to count the length of my response JSON. Here's my code:
getMoviesFromApiAsync() {
return fetch('http://sampleurl.com/' + CommonDataManager.getInstance().getUserID())
.then((response) => response.json())
.then((responseJson) => {
this.setState({isLoading: false, listMessages: responseJson});
})
.catch((error) => {
console.error(error);
});
}
var myObject = {'key':'something', 'other-key':'something else','another-key': 'another thing'}
var count = Object.keys(myObject).length;
Where myObject is your json response and count is the length of your object
This is the best way to count the json objects correctly
In your code you should add this in your second .then
var count = Object.keys(responseJson).length;
.then statement to ensure it exists. This is the entire point of a promise