noAsyncPromiseExecutor
诊断类别：lint/suspicious/noAsyncPromiseExecutor
¥Diagnostic Category: lint/suspicious/noAsyncPromiseExecutor
自从：v1.0.0
¥Since: v1.0.0
来源：
¥Sources:
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与以下相同：
no-async-promise-executor¥Same as:
no-async-promise-executor
禁止使用异步函数作为 Promise 执行器。
¥Disallows using an async function as a Promise executor.
执行器函数也可以是异步函数。但是，这通常是一个错误，原因如下：
¥The executor function can also be an async function. However, this is usually a mistake, for a few reasons:
-
如果异步执行器函数抛出错误，错误将丢失，不会导致新构造的
Promise拒绝。这可能会使调试和处理某些错误变得困难。¥If an async executor function throws an error, the error will be lost and won’t cause the newly-constructed
Promiseto reject. This could make it difficult to debug and handle some errors. -
如果 Promise 执行器函数正在使用
await，这通常表明实际上没有必要使用new Promise构造函数，或者可以缩小new Promise构造函数的范围。¥If a Promise executor function is using
await, this is usually a sign that it is not actually necessary to use thenew Promiseconstructor, or the scope of thenew Promiseconstructor can be reduced.
¥Examples
¥Invalid
new Promise(async function foo(resolve, reject) {})code-block.js:1:13 lint/suspicious/noAsyncPromiseExecutor ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Promise executor functions should not be async.
> 1 │ new Promise(async function foo(resolve, reject) {})
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
new Promise(async (resolve, reject) => {})code-block.js:1:15 lint/suspicious/noAsyncPromiseExecutor ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Promise executor functions should not be async.
> 1 │ new Promise(async (resolve, reject) => {})
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
new Promise(((((async () => {})))))code-block.js:1:19 lint/suspicious/noAsyncPromiseExecutor ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Promise executor functions should not be async.
> 1 │ new Promise(((((async () => {})))))
│ ^^^^^^^^^^^^^^
2 │
¥Valid
new Promise((resolve, reject) => {}) new Promise((resolve, reject) => {}, async function unrelated() {}) new Foo(async (resolve, reject) => {}) new Foo((( (resolve, reject) => {} )))¥Related links