Rename js snippets

snippets/js/s/order-object-array.md

@@ -0,0 +1,42 @@
+---
+title: Order array of objects
+type: snippet
+language: javascript
+tags: [object,array]
+cover: volcano-sunset
+dateModified: 2020-10-21T21:54:53+03:00
+---
+
+Sorts an array of objects, ordered by properties and orders.
+
+- Uses `Array.prototype.sort()`, `Array.prototype.reduce()` on the `props` array with a default value of `0`.
+- Use array destructuring to swap the properties position depending on the order supplied.
+- If no `orders` array is supplied, sort by `'asc'` by default.
+
+```js
+const orderBy = (arr, props, orders) =>
+  [...arr].sort((a, b) =>
+    props.reduce((acc, prop, i) => {
+      if (acc === 0) {
+        const [p1, p2] =
+          orders && orders[i] === 'desc'
+            ? [b[prop], a[prop]]
+            : [a[prop], b[prop]];
+        acc = p1 > p2 ? 1 : p1 < p2 ? -1 : 0;
+      }
+      return acc;
+    }, 0)
+  );
+```
+
+```js
+const users = [
+  { name: 'fred', age: 48 },
+  { name: 'barney', age: 36 },
+  { name: 'fred', age: 40 },
+];
+orderBy(users, ['name', 'age'], ['asc', 'desc']);
+// [{name: 'barney', age: 36}, {name: 'fred', age: 48}, {name: 'fred', age: 40}]
+orderBy(users, ['name', 'age']);
+// [{name: 'barney', age: 36}, {name: 'fred', age: 40}, {name: 'fred', age: 48}]
+```