When JSON is used to send data from one service to the next “over the wire” (i.e. via cloud) it is transmitted as a string which makes it lightweight and fast
JSON.stringify() allows developers to easily transform objects / arrays (or any value) into a JSON string which makes it compatible to be transmitted along with an HTTP Request
“Stringify-ing” data is a common step developers take before sending data to another service
const avengers = {
members: [
{
name: "Spider-Man",
alias: "Peter Parker"
},
{
name: "Black Widow",
alias: "Natasha Romanova"
}
]
}
// convert object into a JSON string
const jsonString = JSON.stringify(avengers))
console.log(jsonString)
console.log(typeof jsonString); // result: string