itertools - npm Package Compare versions

Comparing version 2.2.2 to 2.2.3

dist/index.d.ts

@@ -5,2 +5,8 @@ type Predicate<T> = (value: T) => boolean;
 /**
+ * Returns the first item in the iterable for which the predicate holds, if
+ * any. If no predicate is given, it will return the first value returned by
+ * the iterable.
+ */
+declare function find<T>(iterable: Iterable<T>, keyFn?: Predicate<T>): T | undefined;
+/**
  * Returns true when all of the items in iterable are truthy.  An optional key
@@ -427,8 +433,2 @@ * function can be used to define what truthiness means for this specific
 /**
- * Returns the first item in the iterable for which the predicate holds, if
- * any. If no predicate is given, it will return the first value returned by
- * the iterable.
- */
-declare function find<T>(iterable: Iterable<T>, keyFn?: Predicate<T>): T | undefined;
-/**
  * Almost an alias of find(). There only is a difference if no key fn is
@@ -435,0 +435,0 @@ * provided. In that case, `find()` will return the first item in the iterable,

dist/index.js

@@ -181,3 +181,5 @@ // src/utils.ts
   const it = iter(iterable);
-  for (const value of it) {
+  let res;
+  while (!(res = it.next()).done) {
+    const value = res.value;
     if (!predicate(value)) {
@@ -255,9 +257,16 @@ yield value;
     throw new Error("step cannot be negative");
-  for (const [i, value] of enumerate(iterable)) {
+  let i = -1;
+  const it = iter(iterable);
+  let res;
+  while (true) {
+    i++;
+    if (stop !== null && i >= stop)
+      return;
+    res = it.next();
+    if (res.done)
+      return;
     if (i < start)
       continue;
-    if (stop !== null && i >= stop)
-      break;
     if ((i - start) % step === 0) {
-      yield value;
+      yield res.value;
     }
@@ -354,3 +363,6 @@ }
 function* takewhile(iterable, predicate) {
-  for (const value of iterable) {
+  const it = iter(iterable);
+  let res;
+  while (!(res = it.next()).done) {
+    const value = res.value;
     if (!predicate(value))
@@ -371,2 +383,18 @@ return;
 // src/builtins.ts
+function find(iterable, keyFn) {
+  const it = iter(iterable);
+  if (keyFn === void 0) {
+    const value = it.next();
+    return value.done ? value.value : value.value;
+  } else {
+    let res;
+    while (!(res = it.next()).done) {
+      const value = res.value;
+      if (keyFn(value)) {
+        return value;
+      }
+    }
+    return void 0;
+  }
+}
 function every(iterable, keyFn = identityPredicate) {
@@ -393,3 +421,3 @@ for (const item of iterable) {
 }
-function* enumerate(iterable, start = 0) {
+function* enumerate2(iterable, start = 0) {
   let index = start;
@@ -444,7 +472,7 @@ for (const value of iterable) {
   const it = iter(iterable);
-  const start = it.next();
-  if (start.done) {
+  const start = find(it);
+  if (start === void 0) {
     return void 0;
   } else {
-    return reduce3(it, reducer, start.value);
+    return reduce3(it, reducer, start);
   }
@@ -493,17 +521,2 @@ }
 }
-function find(iterable, keyFn) {
-  if (keyFn === void 0) {
-    for (const value of iterable) {
-      return value;
-    }
-    return void 0;
-  } else {
-    for (const value of iterable) {
-      if (keyFn(value)) {
-        return value;
-      }
-    }
-    return void 0;
-  }
-}
 function first(iterable, keyFn) {
@@ -527,3 +540,3 @@ return find(iterable, keyFn != null ? keyFn : isDefined);
   dropwhile,
-  enumerate,
+  enumerate2 as enumerate,
   every,
@@ -530,0 +543,0 @@ filter,

package.json

 {
   "name": "itertools",
-  "version": "2.2.2",
+  "version": "2.2.3",
   "description": "A JavaScript port of Python's awesome itertools standard library",
@@ -5,0 +5,0 @@ "license": "MIT",

No alert changes

Improved metrics

Total package byte prevSize

187358

increased by1.19%

Lines of code

1545

increased by1.71%

No dependency changes