Nest all content into snippets

snippets/js/s/initialize-array-with-range.md

@@ -0,0 +1,30 @@
+---
+title: Initialize array with range
+type: snippet
+language: javascript
+tags: [array]
+cover: white-flower
+excerpt: Initializes an inclusive array with numbers in a range, using a common `step` difference.
+dateModified: 2020-10-22T20:23:47+03:00
+---
+
+Initializes an array containing the numbers in the specified range where `start` and `end` are inclusive with their common difference `step`.
+
+- Use `Array.from()` to create an array of the desired length.
+- Use `(end - start + 1) / step` and a map function to fill the array with the desired values in the given range.
+- Omit the second argument, `start`, to use a default value of `0`.
+- Omit the last argument, `step`, to use a default value of `1`.
+
+```js
+const initializeArrayWithRange = (end, start = 0, step = 1) =>
+  Array.from(
+    { length: Math.ceil((end - start + 1) / step) },
+    (_, i) => i * step + start
+  );
+```
+
+```js
+initializeArrayWithRange(5); // [0, 1, 2, 3, 4, 5]
+initializeArrayWithRange(7, 3); // [3, 4, 5, 6, 7]
+initializeArrayWithRange(9, 0, 2); // [0, 2, 4, 6, 8]
+```