How to save data as Firestore Timestamp object in Angular

问题

Just want to save Date as timestamp in Firestore database but it's storing timestamp as number:

save() {
    const data = this.transactionForm.value;
    data.type = data.type == 'true' || data.type == true ? true : false;
    data.updated = firebase.firestore.FieldValue.serverTimestamp();
    // Date string to timestamp
    data.date =  new Date(data.date.split("-").reverse().join("-")).getTime();
    let id = data.id;
    this.transCollection.doc(id).update(data);
}  

回答1:

  unixToTimestamp() {
    const date = new Date();
    const hours = date.getHours();
    const minutes = date.getMinutes();
    const seconds =  date.getSeconds();
    const day = date.getDate();
    const month = date.getMonth() + 1;
    const year = date.getFullYear();

    console.log(hours + ':' + minutes + ':' + seconds);
    console.log(day + '/' + month + '/' + year);
  }

I tried this out in typescript, and i got the following output:

11:25:07
19/11/2018

This way you can choose how you want to create your timestamp and save it in firestore

You could also print out month the way you want.

const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

const month = months[date.getMonth()];

This is because date.getMonth() gets index, which is why i use +1 to get a month.

回答2:

I use timestamp in Firebase and I know it is use to store date in long which is number. So I dont know if it is the same in Firestore.

来源：https://stackoverflow.com/questions/53372270/how-to-save-data-as-firestore-timestamp-object-in-angular