iteragain - npm Package Compare versions

Comparing version 0.10.0 to 0.11.0

ExtendedIterator.d.ts

@@ -6,3 +6,3 @@ import { IteratorOrIterable, FlattenDeep, FlattenDepth1, FlattenDepth2, FlattenDepth3, FlattenDepth4, FlattenDepth5, Tuple } from './types';
     /** Returns a `{ value, done }` object that adheres to the Iterator interface. */
-    next(): IteratorResult<T, any>;
+    next(): IteratorResult<T>;
     /** Implements this as an Iterable so it's allowed to be used with "for of" loops. */
@@ -68,5 +68,2 @@ [Symbol.iterator](): IterableIterator<T>;
     pairwise(): ExtendedIterator<[T, T]>;
-    /** Peek ahead of where the current iteration is. */
-    peek(): T | undefined;
-    peek<N extends number>(ahead: N): Tuple<T | undefined, N>;
     /**
@@ -77,2 +74,8 @@ * Take the first `n` elements from this iterator.
     take(n: number): ExtendedIterator<T>;
+    /** Peek ahead of where the current iteration is. This doesn't consume any values of the iterator. */
+    peek(): T | undefined;
+    peek<N extends number>(ahead: N): Tuple<T, N>;
+    /** Yield any number of values from this iterator. */
+    yield(): T | undefined;
+    yield<N extends number>(numOfValues: N): Tuple<T, N>;
     /** Iterates and collects all values into an Array. This essentially invokes this iterator to start iterating. */
@@ -79,0 +82,0 @@ toArray(): T[];

ExtendedIterator.js

@@ -103,10 +103,2 @@ "use strict";
     }
-    peek(ahead) {
-        const values = [];
-        do
-            values.push(this.iterator.next().value);
-        while (--ahead > 0);
-        this.iterator = new ConcatIterator_1.default([(0, toIterator_1.default)(values), this.iterator]);
-        return !isNaN(ahead) ? values : values[0];
-    }
     /**
@@ -119,2 +111,18 @@ * Take the first `n` elements from this iterator.
     }
+    peek(ahead) {
+        const values = this.yield(ahead);
+        const valuesAsArray = Array.isArray(values) ? values : [values];
+        if (values && valuesAsArray.length)
+            this.iterator = new ConcatIterator_1.default([(0, toIterator_1.default)(valuesAsArray), this.iterator]);
+        return values;
+    }
+    yield(numOfValues) {
+        if (!numOfValues)
+            return this.iterator.next().value;
+        const values = [];
+        let next;
+        while (numOfValues-- > 0 && !(next = this.iterator.next()).done)
+            values.push(next.value);
+        return values;
+    }
     /** Iterates and collects all values into an Array. This essentially invokes this iterator to start iterating. */
@@ -121,0 +129,0 @@ toArray() {

package.json

 {
   "name": "iteragain",
-  "version": "0.10.0",
+  "version": "0.11.0",
   "description": "Javascript ES6 Iterable/Iterator utilities.",
@@ -5,0 +5,0 @@ "main": "index.js",

No alert changes

Improved metrics

Total package byte prevSize

45128

increased by1.1%

Lines of code

908

increased by1.23%

No dependency changes