Build README

README.md

@@ -19,6 +19,7 @@
 * [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 boolean primitive values](#check-for-boolean-primitive-values)
 * [Check for palindrome](#check-for-palindrome)
 * [Chunk array](#chunk-array)
 * [Compact](#compact)
@@ -28,6 +29,7 @@
 * [Deep flatten array](#deep-flatten-array)
 * [Distance between two points](#distance-between-two-points)
 * [Divisible by number](#divisible-by-number)
+* [Drop elements in array](#drop-elements-in-array)
 * [Escape regular expression](#escape-regular-expression)
 * [Even or odd number](#even-or-odd-number)
 * [Factorial](#factorial)
@@ -186,6 +188,15 @@ chainAsync([
 */
 ```
 
+### Check for boolean primitive values
+
+Use `typeof` to check if a value is classified as a boolean primitive.
+
+```js
+const isBool = val => typeof val === 'boolean';
+// isBool(null) -> false
+```
+
 ### Check for palindrome
 
 Convert string `toLowerCase()` and use `replace()` to remove non-alphanumeric characters from it.
@@ -286,6 +297,19 @@ const isDivisible = (dividend, divisor) => dividend % divisor === 0;
 // isDivisible(6,3) -> true
 ```
 
+### Drop elements in array
+
+Loop through the array, using `Array.shift()` to drop the first element of the array until the returned value from the function is `true`. 
+Returns the remaining elements.
+
+```js
+const dropElements = (arr,func) => {
+  while(arr.length > 0 && !func(arr[0])) arr.shift();
+  return arr;
+}
+// dropElements([1, 2, 3, 4], n => n >= 3) -> [3,4]
+```
+
 ### Escape regular expression
 
 Use `replace()` to escape special characters.

snippets/join_array_like_objects.md

@@ -1,11 +0,0 @@
-### Joining an array-like object
-
-The following example joins array-like object (arguments), by calling Function.prototype.call on Array.prototype.join.
-
-```
-function f(a, b, c) {
-  var s = Array.prototype.join.call(arguments);
-  console.log(s); // '1,a,true'
-}
-f(1, 'a', true);
-```