renamed flatten-promise to flatten-thunk

flatten-thunk/README.md

@@ -0,0 +1,43 @@
+Here's the basic usage of the file that you'll be creating:
+
+```js
+var flattenThunk = require('./') // <- this is the file you make;
+
+var thunk1 = function(cb) {
+  setTimeout(function() {
+    cb(null, 'done');
+  }, 1);
+}
+var thunk2 = function(cb) {
+  setTimeout(function() {
+    cb(null, thunk1);
+  }, 1);
+}
+var thunk3 = function(cb) {
+  setTimeout(function() {
+    cb(null, thunk2);
+  }, 1);
+}
+
+flattenThunk(thunk3)(function(err, result) {
+  console.log(result); // 'done'
+});
+```
+
+A thunk is basically a function that you call with just the callback as a parameter:
+
+```js
+
+// this is a regular node CPS function
+fs.readFile('package.json', function(err, result) {
+  console.log(result);
+});
+
+// this is a thunk
+var readFileThunk = fs.readFileThunkily('package.json');
+readFileThunk(function(err, result) {
+  console.log(result);
+});
+```
+
+More info: https://github.com/tj/node-thunkify

flatten-thunk/test.js

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+var assert = require('assert');
+var flattenThunk = require('./');
+
+describe('flattenThunk', function() {
+
+  it('flattens the promises', function(done) {
+
+    var thunk1 = function(cb) {
+      setTimeout(function() {
+        cb(null, 'done');
+      }, 1);
+    }
+    var thunk2 = function(cb) {
+      setTimeout(function() {
+        cb(null, thunk1);
+      }, 1);
+    }
+    var thunk3 = function(cb) {
+      setTimeout(function() {
+        cb(null, thunk2);
+      }, 1);
+    }
+
+    flattenThunk(thunk3)(function(err, result) {
+      assert.equal(result, 'done');
+      done();
+    });
+  });
+
+
+});