Adding an array to native storage

@sunnyj58 wrote:

I am trying to build an app that will allow a user to scan a barcode, then save the time this barcode was scanned to native storage.
Then each time the user uses the application, they can continue to add successful scans (times) to native storage.

I have found that when I just set a date, it overwrites the previous date. So what I thought to do is take the existing date(s), add them to an array, add the new date to this array then put all this back into native storage.
However what I find is that when the user changes page, then returns to the scan page and adds a date to the array, its adding an entire new array into the old array as one variable rather than separate entries to this array.

How can I resolve this?

My code is -
export class ScanSession {

emptyArray = [];

ionViewDidEnter(){
this.nativeStorage.getItem(‘scans’)
.then(
data => this.emptyArray.push(JSON.parse(data)),
)
console.log(“Saved Scan Data Loaded”)
}

constructor(private barcodeScanner: BarcodeScanner, private nativeStorage: NativeStorage) {
}

   //Test to see if data is being saved
  ShowDataTest(): any{
    this.nativeStorage.getItem('scans')
    .then(
      data => console.log(data)
    )
  }

ScanCode() : any{

this.barcodeScanner.scan().then((barcodeData) => {
let inputString = “testData”;

if( barcodeData.text == inputString){

  this.emptyArray.push(Date());
  this.nativeStorage.setItem('scans', JSON.stringify(this.emptyArray))
  console.log("Scan successfully added")

} else {
  console.log("Doesnt Match");
}

}, (err) => {

});
};
}

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