is-async-function

Check that given function is async (callback) function or not. Trying to guess that based on check if `callback` or `cb` exists in function arguments.

Last updated 10 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 () {}));