Select count sqllite ionic 3

@andika1204 wrote:

i want to ask why if i alert my result it becomes undefined? this is the code

result:any;

countdb(){
    this.sqlite.create({
      name: 'logindata.db',
      location: 'default'
    }).then((db: SQLiteObject) => {
      db.executeSql('SELECT COUNT(mobilephonid) AS result FROM login',{})
      .then(res => {
this.result = res.rows.item(0).result
alert(this.result)})
      .catch(e => console.log(e));
    });
  }

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