const data_ = () => {
let array = []
fs.createReadStream('./files/treinamento.csv')
.pipe(csv())
.on('data', (data) => {
array.push(data)
})
.on('end', () => {
console.log(array)
})
}
Using console.log I get return with the values I want, but replacing the console with return the function returns me an empty array. Could someone give me a solution?
Can not return of this function because it is asynchronous. What you have to do is chain functions.
That is, if you have a function that needs this result, you have to call it by passing it the data you need within that end . Something like this:
function usarData(arr) {
// esta função será chamada quando a array estiver pronta.
console.log(arr);
}
const data_ = (fn) => {
let array = []
fs.createReadStream('./files/treinamento.csv')
.pipe(csv())
.on('data', (data) => {
array.push(data)
})
.on('end', () => {
fn(array)
})
}
data_(usarData);