fix Lag

Author: 0xF6

package.json

@@ -1,6 +1,6 @@
 {
   "name": "linqable.ts",
-  "version": "1.6.0",
+  "version": "1.7.0",
   "description": "LINQ implementation library for TypeScript",
   "main": "./build/Extensions.js",
   "author": "Yuuki Wesp",

src/AdvancedLinqable.ts

@@ -116,7 +116,7 @@ export class AdvancedLinqable<T> extends BaseLinqable<T> {
         let generator = function* ()
         {
             var i = offset;
-            var lagQueue = new Array<T>(offset);
+            var lagQueue = new Array<T>();
             var hasMore = true;
             let iter = that.GetIterator();
             while (i-- > 0 && (hasMore = iter.moveNext()))

test/Advanced.test.ts

@@ -29,13 +29,16 @@ test("Consume", (t) => {
 
 
 test("Lag", (t) => {
-    t.plan(2);
+    t.plan(4);
     let arr = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
     t.throws(() => {
         arr.Lag(-10, 0,(val, lagVal) => val);
     }, "offset <= 0");
     let result = arr.Lag(2, 0, (a, b) => { return { A: a, B: b}; })
     t.deepEqual(10, result.Count());
+    console.log(JSON.stringify(result))
+    t.true(result.slice(2).All(x => x.B == (x.A - 2)));
+    t.true(result.Take(2).All(x => (x.A - x.B) == x.A));
 });
 
 test("Exclude", (t) => {
@@ -66,3 +69,12 @@ test("Flatten", (t)=>{
 test("Pairwise", (t) => {
     t.deepEqual([123, 456, 789].Pairwise(function(x,y) {return {x, y}}), [{x:123,y:456},{x:456,y:789}]);
 })
+
+test("Pipe", (t) => {
+    t.plan(3);
+    let arr = [{x: 12}, {x: 12}, {x: 12}];
+    arr.Pipe(x => {x.x++;})
+    t.deepEqual(arr[0].x, 13);
+    t.deepEqual(arr[1].x, 13);
+    t.deepEqual(arr[2].x, 13);
+})