Housekeeping, head, tail, init and last of list

snippets/curry.md

@@ -5,7 +5,7 @@ If the number of provided arguments (`args`) is sufficient, call the passed func
 Otherwise return a curried function `f` that expects the rest of the arguments.
 
 ```js
-curry = f =>
+var curry = f =>
   (...args) =>
     args.length >= f.length ? f(...args) : (...otherArgs) => curry(f)(...args, ...otherArgs)
 ```

snippets/escape-regular-expression.md

@@ -3,7 +3,7 @@
 Use `replace()` to escape special characters.
 
 ```js
-escapeRegExp = s =>
+var escapeRegExp = s =>
   s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
 }
 ```

snippets/head-of-list.md

@@ -0,0 +1,8 @@
+### Head of list
+
+Return `arr[0]`.
+
+```js
+var head = arr => arr[0];
+}
+```

snippets/initial-of-list.md

@@ -0,0 +1,8 @@
+### Initial of list
+
+Return `arr.slice(0,-1)`.
+
+```js
+var initial = arr => arr.slice(0,-1);
+}
+```

snippets/last-of-list.md

@@ -0,0 +1,8 @@
+### Last of list
+
+Return `arr.slice(-1)[0]`.
+
+```js
+var initial = arr => arr.slice(-1)[0];
+}
+```

snippets/tail-of-list.md

@@ -0,0 +1,8 @@
+### Tail of list
+
+Return `arr.slice(1)`.
+
+```js
+var tail = arr => arr.slice(1);
+}
+```