feat: prod and revers functions

Author: vektor8891

src/data/vector/PLVector.ts

@@ -50,6 +50,10 @@ export class PLVector<Item extends VectorItem>
     return new PLVector<Item>(this.value.filter((item) => fn(item).toJS()))
   }
 
+  public reverse(): PLVector<Item> {
+    return new PLVector<Item>(this.value.reverse())
+  }
+
   public reduce<Result>(init: Result, fn: (acc: Result, item: Item) => Result): Result {
     return this.value.reduce(fn, init) as Result
   }

src/data/vector/vectorFn.spec.ts

@@ -1,4 +1,4 @@
-import { head, intersperse, join, joinWith, numList, plVector, sum, prod, tail, slice } from './vectorFn'
+import { head, intersperse, join, joinWith, numList, plVector, sum, prod, tail, reverse, slice } from './vectorFn'
 import { plNumber } from '../number/numberFn'
 import { plString } from '../string/stringFn'
 
@@ -67,6 +67,14 @@ describe('stdlib/data/vectorFn', () => {
     })
   })
 
+  describe('reverse', () => {
+    it('should reverse vector correctly', () => {
+      expect(reverse(plVector(plString('a'), plString('b'), plString('c')))).toEqual(
+        plVector(plString('c'), plString('b'), plString('a')),
+      )
+    })
+  })
+
   describe('slice', () => {
     it('should slice vector correctly', () => {
       expect(slice(plVector(plString('a'), plString('b'), plString('c')), plNumber(1), plNumber(2))).toEqual(

src/data/vector/vectorFn.ts

@@ -53,6 +53,11 @@ export const tail: <T extends PLBase>(list: PLVector<T>) => PLVector<T> = (list)
   return plVector(...(list.value.slice(1) as StrictArray<any>))
 }
 
+export const reverse: <T extends PLBase>(list: PLVector<T>) => PLVector<T> = (list) => {
+  typeCheck(PLVector, list)
+  return plVector(...(list.value.reverse() as StrictArray<any>))
+}
+
 export const slice: <T extends PLBase>(list: PLVector<T>, start: PLNumber, end: PLNumber) => PLVector<T> = (
   list,
   start,
@@ -67,11 +72,13 @@ export const slice: <T extends PLBase>(list: PLVector<T>, start: PLNumber, end:
 
 export default {
   sum,
+  prod,
   intersperse,
   join,
   'join-with': joinWith,
   'num-list': numList,
   head,
+  reverse,
   slice,
   tail,
 }