Today, I will recommend a few recommended practices for writing JavaScript asynchronous code. Each scenario has a corresponding eslint rule, and you can choose to configure it.
no-async-promise-executor
Passing an async function to the constructor of new Promise is not recommended.
// ❌ new Promise(async (resolve, reject) => {}); // ✅ new Promise((resolve, reject) => {});
First, if you use async in the Promise ‘s constructor, wrapping a Promise may not be necessary. In addition, if the async function throws an exception, the newly constructed promise instance will not reject , so the error cannot be caught. …
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