flow like the river

VISUALIZACION/node_modules/sift/src/utils.js

@@ -0,0 +1,70 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.equals = exports.isVanillaObject = exports.isFunction = exports.isObject = exports.isArray = exports.comparable = exports.typeChecker = void 0;
+const typeChecker = (type) => {
+    const typeString = "[object " + type + "]";
+    return function (value) {
+        return getClassName(value) === typeString;
+    };
+};
+exports.typeChecker = typeChecker;
+const getClassName = value => Object.prototype.toString.call(value);
+const comparable = (value) => {
+    if (value instanceof Date) {
+        return value.getTime();
+    }
+    else if ((0, exports.isArray)(value)) {
+        return value.map(exports.comparable);
+    }
+    else if (value && typeof value.toJSON === "function") {
+        return value.toJSON();
+    }
+    return value;
+};
+exports.comparable = comparable;
+exports.isArray = (0, exports.typeChecker)("Array");
+exports.isObject = (0, exports.typeChecker)("Object");
+exports.isFunction = (0, exports.typeChecker)("Function");
+const isVanillaObject = value => {
+    return (value &&
+        (value.constructor === Object ||
+            value.constructor === Array ||
+            value.constructor.toString() === "function Object() { [native code] }" ||
+            value.constructor.toString() === "function Array() { [native code] }") &&
+        !value.toJSON);
+};
+exports.isVanillaObject = isVanillaObject;
+const equals = (a, b) => {
+    if (a == null && a == b) {
+        return true;
+    }
+    if (a === b) {
+        return true;
+    }
+    if (Object.prototype.toString.call(a) !== Object.prototype.toString.call(b)) {
+        return false;
+    }
+    if ((0, exports.isArray)(a)) {
+        if (a.length !== b.length) {
+            return false;
+        }
+        for (let i = 0, { length } = a; i < length; i++) {
+            if (!(0, exports.equals)(a[i], b[i]))
+                return false;
+        }
+        return true;
+    }
+    else if ((0, exports.isObject)(a)) {
+        if (Object.keys(a).length !== Object.keys(b).length) {
+            return false;
+        }
+        for (const key in a) {
+            if (!(0, exports.equals)(a[key], b[key]))
+                return false;
+        }
+        return true;
+    }
+    return false;
+};
+exports.equals = equals;
+//# sourceMappingURL=utils.js.map