Update drop, add dropWhile, dropRightWhile

snippets/drop.md

@@ -0,0 +1,15 @@
+### drop
+
+Returns a new array with `n` elements removed from the left.
+
+Use `Array.slice()` to slice the remove the specified number of elements from the left.
+
+```js
+const drop = (arr, n = 1) => arr.slice(n);
+```
+
+```js
+drop([1, 2, 3]); // [2,3]
+drop([1, 2, 3], 2); // [3]
+drop([1, 2, 3], 42); // []
+```

snippets/dropRightWhile.md

@@ -0,0 +1,17 @@
+### dropRightWhile
+
+Removes elements from the end of an array until the passed function returns `true`. Returns the remaining elements in the array.
+
+Loop through the array, using `Array.slice()` to drop the last element of the array until the returned value from the function is `true`.
+Returns the remaining elements.
+
+```js
+const dropRightWhile = (arr, func) => {
+  while (arr.length > 0 && !func(arr[arr.length-1])) arr = arr.slice(0, -1);
+  return arr;
+};
+```
+
+```js
+dropRightWhile([1, 2, 3, 4], n => n < 3); // [1, 2]
+```

snippets/dropWhile.md

@@ -1,4 +1,4 @@
-### dropElements
+### dropWhile
 
 Removes elements in an array until the passed function returns `true`. Returns the remaining elements in the array.
 
@@ -6,12 +6,12 @@ Loop through the array, using `Array.slice()` to drop the first element of the a
 Returns the remaining elements.
 
 ```js
-const dropElements = (arr, func) => {
+const dropWhile = (arr, func) => {
   while (arr.length > 0 && !func(arr[0])) arr = arr.slice(1);
   return arr;
 };
 ```
 
 ```js
-dropElements([1, 2, 3, 4], n => n >= 3); // [3,4]
+dropWhile([1, 2, 3, 4], n => n >= 3); // [3,4]
 ```