The JSON.stringify() method converts a JavaScript object or value to a JSON string, optionally replacing values if a replacer function is specified or optionally including only the specified properties if a replacer array is specified.
const foo = {
baz: 'baz',
bar: 'bar'
}
JSON.stringify(foo, (key, value) => {
if (key === 'baz') {
return 'qux'
}
return value
})
// => { baz: 'qux', bar: 'bar' }
const foo = {
baz: 'baz',
bar: 'bar'
}
JSON.stringify(foo, ['bar'])
// => { bar: 'bar' }