Reorganized repo using yarn and workspaces

packages/common/build/iterators.js

@@ -0,0 +1,57 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function* map(iter, fn) {
+    for (const item of iter) {
+        yield fn(item);
+    }
+}
+exports.map = map;
+function* chain(a, b) {
+    yield* a;
+    yield* b;
+}
+exports.chain = chain;
+function* zip(a, b) {
+    let itemA = a.next();
+    let itemB = b.next();
+    while (!itemA.done && !itemB.done) {
+        yield [itemA.value, itemB.value];
+        itemA = a.next();
+        itemB = b.next();
+    }
+}
+exports.zip = zip;
+function* take(iter, n) {
+    for (const item of iter) {
+        if (n-- === 0) {
+            return;
+        }
+        yield item;
+    }
+}
+exports.take = take;
+function skip(iter, n) {
+    while (n-- !== 0 && !iter.next().done) { }
+    return iter;
+}
+exports.skip = skip;
+function reduce(iter, fn, accumulator) {
+    for (const item of iter) {
+        accumulator = fn(accumulator, item);
+    }
+    return accumulator;
+}
+exports.reduce = reduce;
+function join(iter, glue) {
+    const first = iter.next();
+    if (first.done) {
+        return '';
+    }
+    let result = first.value.toString();
+    for (const item of iter) {
+        result += glue + item;
+    }
+    return result;
+}
+exports.join = join;
+//# sourceMappingURL=iterators.js.map