Build README

README.md

@@ -12,6 +12,7 @@
 * [Average of array of numbers](#average-of-array-of-numbers)
 * [Capitalize first letter of every word](#capitalize-first-letter-of-every-word)
 * [Capitalize first letter](#capitalize-first-letter)
+* [Chain asynchronous functions](#chain-asynchronous-functions)
 * [Check for palindrome](#check-for-palindrome)
 * [Chunk array](#chunk-array)
 * [Count occurrences of a value in array](#count-occurrences-of-a-value-in-array)
@@ -110,6 +111,21 @@ const capitalize = (str, lowerRest = false) =>
 // capitalize('myName', true) -> 'Myname'
 ```
 
+### Chain asynchronous functions
+
+Loop through an array of functions containing asynchronous events, calling `next` when each asynchronous event has completed.
+
+```js
+const chainAsync = fns => { let curr = 0; const next = () => fns[curr++](next); next(); }
+/*
+chainAsync([
+  next => { console.log('0 seconds'); setTimeout(next, 1000); },
+  next => { console.log('1 second');  setTimeout(next, 1000); },
+  next => { console.log('2 seconds'); }
+])
+*/
+```
+
 ### Check for palindrome
 
 Convert string `toLowerCase()` and use `replace()` to remove non-alphanumeric characters from it.

snippets/chain-asynchronous-functions.md

@@ -8,7 +8,7 @@ const chainAsync = fns => { let curr = 0; const next = () => fns[curr++](next);
 chainAsync([
   next => { console.log('0 seconds'); setTimeout(next, 1000); },
   next => { console.log('1 second');  setTimeout(next, 1000); },
-  next => { console.log('2 seconds');}
+  next => { console.log('2 seconds'); }
 ])
 */
 ```