async.switch

async.switch.js

var async = require('async');

// ASYNC SWITCH patches the async module with a switch like construct for asynchronous functions.

// Use like:
// async.switch(sitchedVar, {
//     'case 1': function (callback) {/*...*/},
//     'case 2': function (callback) {/*...*/},
//     'default': function (callback) {/*...*/}
// }, callback);


async.switch = function (switchVariable, functions, callback) {
    var func = functions[switchVariable] || functions.default;

    if (!func) {
        return callback(new Error('No functions match the switch variable: ' + switchVar));
    }

    func(callback);
};