Merge pull request #427 from phollome/master

[ADD: `size.md`] add size snippet

snippets/size.md

@@ -0,0 +1,27 @@
+### size
+
+Get size of arrays, objects or strings.
+
+Get type of `value` (`array`, `object` or `string`). 
+Use `length` property for arrays. 
+Use `length` or `size` value if available or number of keys for objects. 
+Use `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `value` for strings.
+
+Split strings into array of characters with `split('')` and return its length.
+
+```js
+const size = value =>
+  Array.isArray(value)
+    ? value.length
+    : value && typeof value === 'object'
+    ? value.size || value.length || Object.keys(value).length
+    : typeof value === 'string'
+    ? new Blob([value]).size
+    : 0;
+```
+
+```js
+size([ 1, 2, 3, 4, 5 ]); // 5
+size('size'); // 4
+size({ one: 1, two: 2, three: 3 }); // 3
+```