I am developing electron app with sqlite 3 Database. I would like to get Last inserted ID after save data in database.
i have run below query but call result always showing undefined. can anybody help me to solve this issue?
db.run(`INSERT INTO myTable (data1, data2) VALUES (aa, bb)`, (err) => {
console.log(this.lastID)
if (err) {
console.log(err)
} else {
console.log( this.lastID)
}
Data base inserted successfully but result, this.lastID result is undefine.
It's because you are using arrow syntax. Arrow syntax setting the this context to the parent. You should do:
db.run(`INSERT INTO myTable (data1, data2) VALUES (aa, bb)`, function (err) {
console.log(this.lastID)
if (err) {
console.log(err)
} else {
console.log( this.lastID)
})
The call, apply and bind methods are NOT suitable for Arrow functions -- as they were designed to allow methods to execute within different scopes -- because Arrow functions establish "this" based on the scope the Arrow function is defined within.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions