how to delete whole flatlist in one go and whole firestore collection

Evil Emu answered on September 14, 2021 Popularity 1/10 Helpfulness 1/10

answer how to delete whole flatlist in one go and whole firestore collection

how to delete whole flatlist in one go and whole firestore collection

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deleting whole flatlist in one go using firestore 

filter data=(_item)=>{
   this.setState({users: this.state.users.filter(item => item. Key=== _item)});
    console.log(this.state.favorites) }
call this function in button deleteall code given below
 <Touchable Opacity
            onPress={() => {   async function massDeleteUsers() {
              // Get all users
              const usersQuerySnapshot = await firestore().collection('user').get(                 
              );             
              // Create a new batch instance
              const batch = firestore().batch();             
              usersQuerySnapshot.forEach(documentSnapshot => {
                batch.delete(documentSnapshot.ref); });             
              return batch.commit();}             
           massDeleteUsers().then(() =>{     
             this.filterdata()
               console.log('All users deleted in a single batch operation.')}) }}>
so this will delete whole flatlist in on go and delete whole firestore collection

Popularity 1/10 Helpfulness 1/10 Language typescript

Source: Grepper

Tags: flatlist go typescript

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Contributed on Sep 14 2021

Evil Emu

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how to delete whole flatlist in one go and whole firestore collection

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