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Amanda Richardson
Web Development Techdegree Student 13,776 Pointssyntax of async function here
I am confused on the syntax here - specifically that the function starts with a parentheses and I haven't seen that used - instead seeing async function (). I can't find reference to this in MDN. What is the meaning of the first parentheses here and why are we nesting this function in parentheses? Or am I just completely misunderstanding this code? ... (async () => { // Sync 'Movies' table await sequelize.sync({ force: true });
try { const movie = await Movie.create({ title: "Toy Story", }); console.log(movie.toJSON()); } catch (error) { console.error("Error connecting to the database: ", error); } })(); ...
1 Answer
Jason Larson
8,353 PointsSurrounding the function with parentheses makes it an IIFE (Immediately Invoked Function Expression). Here is the link to the MDN article on it.
Amanda Richardson
Web Development Techdegree Student 13,776 PointsAmanda Richardson
Web Development Techdegree Student 13,776 PointsThanks Jason! I just hadn't seen that before.