I have this function getData which will read in a list of IDs from a JSON file. the list of IDs is stored to the idsList variable which i need to use inside another function. How do i return the value from this function
function getData(){
fetch("JSONitemIDsList.json")
.then(response => response.json())
.then(data => {
let idsList = data.ids
//return idsList
})
}
function myFunc(idsList) {
//do something with idsList
}
You can approach this in many ways. For example:
// with async / await
async function getData() {
try {
const rawData = await fetch("JSONitemIDsList.json")
const data = await rawData.json()
return data
} catch (err) {
// handle error here
console.log(err)
}
}
async function myFunc() {
const idsList = await getData()
//do something with idsList
}
or
// define first
function myFunc(idsList) {
//do something with idsList
}
function getData(){
fetch("JSONitemIDsList.json")
.then(response => response.json())
.then(data => {
// function call
myFunc(data.ids)
})
}
You can try this:
const reqResponse = fetch("JSONitemIDsList.json")
.then(response => response.json())
// I am not sure, if your data is already in the format that you need, otherwise, you can run one more .then() to format it
}
const getIdList= async () => {
const idList = await reqResponse;
console.log(idList)
// use idList to access the information you need
}