Prepare repository for merge

javascript/snippets/have-same-contents.md

@@ -0,0 +1,27 @@
+---
+title: Check if arrays have same contents
+type: snippet
+tags: [array]
+author: chalarangelo
+cover: interior-15
+dateModified: 2020-10-19T22:49:51+03:00
+---
+
+Checks if two arrays contain the same elements regardless of order.
+
+- Use a `for...of` loop over a `Set` created from the values of both arrays.
+- Use `Array.prototype.filter()` to compare the amount of occurrences of each distinct value in both arrays.
+- Return `false` if the counts do not match for any element, `true` otherwise.
+
+```js
+const haveSameContents = (a, b) => {
+  for (const v of new Set([...a, ...b]))
+    if (a.filter(e => e === v).length !== b.filter(e => e === v).length)
+      return false;
+  return true;
+};
+```
+
+```js
+haveSameContents([1, 2, 4], [2, 4, 1]); // true
+```