diff --git a/README.md b/README.md index 0ec79c171..d5d1b7eb2 100644 --- a/README.md +++ b/README.md @@ -985,6 +985,52 @@ async.waterfall([ // result now equals 'done' }); ``` +Or, with named functions: + +```js +async.waterfall([ + myFirstFunction, + mySecondFunction, + myLastFunction, +], function (err, result) { + // result now equals 'done' +}); +function myFirstFunction(callback) { + callback(null, 'one', 'two'); +} +function mySecondFunction(arg1, arg2, callback) { + // arg1 now equals 'one' and arg2 now equals 'two' + callback(null, 'three'); +} +function myLastFunction(arg1, callback) { + // arg1 now equals 'three' + callback(null, 'done'); +} +``` + +Or, if you need to pass any argument to the first function: + +```js +async.waterfall([ + async.apply(myFirstFunction, 'zero'), + mySecondFunction, + myLastFunction, +], function (err, result) { + // result now equals 'done' +}); +function myFirstFunction(arg1, callback) { + // arg1 now equals 'zero' + callback(null, 'one', 'two'); +} +function mySecondFunction(arg1, arg2, callback) { + // arg1 now equals 'one' and arg2 now equals 'two' + callback(null, 'three'); +} +function myLastFunction(arg1, callback) { + // arg1 now equals 'three' + callback(null, 'done'); +} +``` ---------------------------------------