@ts-common/iterator - npm Package Compare versions

Comparing version 0.1.2 to 0.1.3

dist/index.d.ts

@@ -48,2 +48,3 @@ import { Tuple2 } from "@ts-common/tuple";
 export declare const dropRight: <T>(i: ReadonlyArray<T> | undefined, n?: number) => Iterable<T>;
+export declare const uniq: <T>(i: Iterable<T>, key?: (v: T) => unknown) => Iterable<T>;
 //# sourceMappingURL=index.d.ts.map

dist/index.js

@@ -154,2 +154,15 @@ "use strict";
 exports.dropRight = (i, n = 1) => i === undefined ? [] : exports.take(i, i.length - n);
+exports.uniq = (i, key = v => v) => exports.iterable(function* () {
+    const set = new Set();
+    // tslint:disable-next-line:no-loop-statement
+    for (const v of i) {
+        const k = key(v);
+        // tslint:disable-next-line:no-if-statement
+        if (!set.has(k)) {
+            // tslint:disable-next-line:no-expression-statement
+            set.add(k);
+            yield v;
+        }
+    }
+});
 //# sourceMappingURL=index.js.map

package.json

 {
   "name": "@ts-common/iterator",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "Iterator library for JavaScript and TypeScript",
@@ -57,8 +57,8 @@ "main": "dist/index.js",
     "tslint": "^5.12.1",
-    "tslint-immutable": "^5.1.0",
-    "typescript": "^3.2.2"
+    "tslint-immutable": "^5.1.2",
+    "typescript": "^3.3.1"
   },
   "dependencies": {
-    "@ts-common/tuple": "^0.0.5"
+    "@ts-common/tuple": "^0.0.6"
   }
 }

src/index.ts

@@ -274,1 +274,16 @@ import { Tuple2, tuple2 } from "@ts-common/tuple"
     i === undefined ? [] : take(i, i.length - n)
+
+export const uniq = <T>(i: Iterable<T>, key: (v: T) => unknown = v => v): Iterable<T> =>
+    iterable(function *() {
+        const set = new Set<unknown>()
+        // tslint:disable-next-line:no-loop-statement
+        for (const v of i) {
+            const k = key(v)
+            // tslint:disable-next-line:no-if-statement
+            if (!set.has(k)) {
+                // tslint:disable-next-line:no-expression-statement
+                set.add(k)
+                yield v
+            }
+        }
+    })

No alert changes

Improved metrics

Total package byte prevSize

42580

3.49%

Lines of code

460

6.48%

Dependency changes

• + Added

  @ts-common/tuple@0.0.6
  (transitive)

• - Removed

  @ts-common/tuple@0.0.5
  (transitive)

• Updated

  @ts-common/tuple@^0.0.6