init source

node_modules/rxjs/internal/operators/pluck.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var map_1 = require("./map");
+function pluck() {
+    var properties = [];
+    for (var _i = 0; _i < arguments.length; _i++) {
+        properties[_i] = arguments[_i];
+    }
+    var length = properties.length;
+    if (length === 0) {
+        throw new Error('list of properties cannot be empty.');
+    }
+    return function (source) { return map_1.map(plucker(properties, length))(source); };
+}
+exports.pluck = pluck;
+function plucker(props, length) {
+    var mapper = function (x) {
+        var currentProp = x;
+        for (var i = 0; i < length; i++) {
+            var p = currentProp[props[i]];
+            if (typeof p !== 'undefined') {
+                currentProp = p;
+            }
+            else {
+                return undefined;
+            }
+        }
+        return currentProp;
+    };
+    return mapper;
+}
+//# sourceMappingURL=pluck.js.map