Add reduceSuccessive

Similar to Ramda's scan.

snippets/reduceSuccessive.md

@@ -0,0 +1,16 @@
+### reduceSuccessive
+
+Applies a function against an accumulator and each element in the array (from left to right), returning an array of successively reduced values.
+
+Use `Array.reduce()` to apply the given function to the given array, storing each new result.
+
+```js
+const reduceSuccessive = (arr, fn, acc) =>
+  arr.reduce((res, val, i, arr) => (res.push(fn(res.slice(-1)[0], val, i, arr)),res), [
+    acc,
+  ]);
+```
+
+```js
+reduceSuccessive([1, 2, 3, 4, 5, 6], (acc, val) => acc + val, 0); // [0, 1, 3, 6, 10, 15, 21]
+```

tag_database

@@ -182,6 +182,7 @@ randomNumberInRange:math,utility,random
 readFileLines:node,array,string
 redirect:browser,url
 reducedFilter:array
+reduceSuccessive:array,function
 remove:array
 reverseString:string,array
 RGBToHex:utility