init component

node_modules/fp-ts/es6/FoldableWithIndex.js

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+/**
+ * A `Foldable` with an additional index.
+ * A `FoldableWithIndex` instance must be compatible with its `Foldable` instance
+ *
+ * ```ts
+ * reduce(fa, b, f) = reduceWithIndex(fa, b, (_, b, a) => f(b, a))
+ * foldMap(M)(fa, f) = foldMapWithIndex(M)(fa, (_, a) => f(a))
+ * reduceRight(fa, b, f) = reduceRightWithIndex(fa, b, (_, a, b) => f(a, b))
+ * ```
+ *
+ * @since 2.0.0
+ */
+import { getFoldableComposition } from './Foldable';
+import { pipe } from './function';
+export function reduceWithIndex(F, G) {
+    return function (b, f) { return function (fga) {
+        return F.reduceWithIndex(fga, b, function (i, b, ga) { return G.reduceWithIndex(ga, b, function (j, b, a) { return f([i, j], b, a); }); });
+    }; };
+}
+export function foldMapWithIndex(F, G) {
+    return function (M) {
+        var foldMapWithIndexF = F.foldMapWithIndex(M);
+        var foldMapWithIndexG = G.foldMapWithIndex(M);
+        return function (f) { return function (fga) { return foldMapWithIndexF(fga, function (i, ga) { return foldMapWithIndexG(ga, function (j, a) { return f([i, j], a); }); }); }; };
+    };
+}
+export function reduceRightWithIndex(F, G) {
+    return function (b, f) { return function (fga) {
+        return F.reduceRightWithIndex(fga, b, function (i, ga, b) { return G.reduceRightWithIndex(ga, b, function (j, a, b) { return f([i, j], a, b); }); });
+    }; };
+}
+/** @deprecated */
+export function getFoldableWithIndexComposition(F, G) {
+    var FC = getFoldableComposition(F, G);
+    var _reduceWithIndex = reduceWithIndex(F, G);
+    var _foldMapWithIndex = foldMapWithIndex(F, G);
+    var _reduceRightWithIndex = reduceRightWithIndex(F, G);
+    return {
+        reduce: FC.reduce,
+        foldMap: FC.foldMap,
+        reduceRight: FC.reduceRight,
+        reduceWithIndex: function (fga, b, f) { return pipe(fga, _reduceWithIndex(b, f)); },
+        foldMapWithIndex: function (M) {
+            var foldMapWithIndexM = _foldMapWithIndex(M);
+            return function (fga, f) { return pipe(fga, foldMapWithIndexM(f)); };
+        },
+        reduceRightWithIndex: function (fga, b, f) { return pipe(fga, _reduceRightWithIndex(b, f)); }
+    };
+}