I am trying to create empty array in react-native using es6. But while accessing it I get an error data not defined.
Here is the code snippet which I am using to initialise the array.
constructor() {
super();
this.state = {
search: "",
data: []
}
}
Here is the code through which I am trying to populate the array and at the same time logging it
.then((responseData) => {
this.setState({
data: responseData.hits.hits.map(function(search){
return{
name: search._source.service_name
}
})
})
console.log(data);
I think so there is a problem in initialisation of array can anybody rectify it?
Your initializing of the array looks fine. You just can't access data
like a local scoped variable. The data
array in your example is a property/attribute of your state object.
So you need to access your data array like this: this.state.data
尝试console.log(this.state.data)
而不是console.log(data)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.