is-async-function

Check that given function is async (callback) function or not. Trying to guess that based on check if `callback`, `cb`, `done` or `next` exists as function argument name.

Last updated 9 years ago by tunnckocore .

MIT · Repository · Bugs · Original npm · Tarball · package.json

$ gnpm install is-async-function

SYNC missed versions from official npm registry.

is-async-function

Is this a native async function?

Example

var isAsyncFunction = require('is-async-function');
assert(!isAsyncFunction(function () {}));
assert(!isAsyncFunction(null));
assert(!isAsyncFunction(function* () { yield 42; return Infinity; }));
assert(isAsyncFunction(async function () {}));