Update snippet descriptions

snippets/intersectionBy.md

@@ -5,7 +5,8 @@ tags: array,intermediate
 
 Returns the elements that exist in both arrays, after applying the provided function to each array element of both.
 
-- Create a `Set` by applying `fn` to all elements in `b`, then use `Array.prototype.filter()` on `a` to only keep elements, which produce values contained in `b` when `fn` is applied to them.
+- Create a `Set` by applying `fn` to all elements in `b`.
+- Use `Array.prototype.filter()` on `a` to only keep elements, which produce values contained in `b` when `fn` is applied to them.
 
 ```js
 const intersectionBy = (a, b, fn) => {
@@ -16,5 +17,9 @@ const intersectionBy = (a, b, fn) => {
 
 ```js
 intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); // [2.1]
-intersectionBy([{ title: 'Apple' }, { title: 'Orange' }], [{ title: 'Orange' }, { title: 'Melon' }], x => x.title) // [{ title: 'Orange' }]
+intersectionBy(
+  [{ title: 'Apple' }, { title: 'Orange' }],
+  [{ title: 'Orange' }, { title: 'Melon' }],
+  x => x.title
+); // [{ title: 'Orange' }]
 ```