lodash: changed _.isNaN() method

lodash/lodash-tests.ts

@@ -1071,6 +1071,14 @@ result = <boolean>_({}).isMatch({});
 result = <boolean>_({}).isMatch({}, testIsMatchCustiomizerFn);
 result = <boolean>_({}).isMatch({}, testIsMatchCustiomizerFn, {});
 
+// _.isNaN
+result = <boolean>_.isNaN(NaN);
+result = <boolean>_.isNaN(new Number(NaN));
+result = <boolean>_.isNaN(undefined);
+result = <boolean>_(NaN).isNaN();
+result = <boolean>_(new Number(NaN)).isNaN();
+result = <boolean>_(undefined).isNaN();
+
 // _.isNative
 result = <boolean>_.isNative(Array.prototype.push);
 result = <boolean>_(Array.prototype.push).isNative();
@@ -1309,10 +1317,6 @@ result = <boolean>_.isFinite(Infinity);
 
 result = <boolean>_.isFunction(_);
 
-result = <boolean>_.isNaN(NaN);
-result = <boolean>_.isNaN(new Number(NaN));
-result = <boolean>_.isNaN(undefined);
-
 result = <boolean>_.isNull(null);
 result = <boolean>_.isNull(undefined);
 

lodash/lodash.d.ts

@@ -5888,6 +5888,24 @@ declare module _ {
         isMatch(source: Object, customizer?: isMatchCustomizer, thisArg?: any): boolean;
     }
 
+    //_.isNaN
+    interface LoDashStatic {
+        /**
+         * Checks if value is NaN.
+         * Note: This method is not the same as isNaN which returns true for undefined and other non-numeric values.
+         * @param value The value to check.
+         * @return Returns true if value is NaN, else false.
+         */
+        isNaN(value?: any): boolean;
+    }
+
+    interface LoDashWrapperBase<T, TWrapper> {
+        /**
+         * @see _.isNaN
+         */
+        isNaN(): boolean;
+    }
+
     //_.isNative
     interface LoDashStatic {
         /**
@@ -6719,19 +6737,6 @@ declare module _ {
         isFunction(value?: any): boolean;
     }
 
-    //_.isNaN
-    interface LoDashStatic {
-        /**
-        * Checks if value is NaN.
-        *
-        * Note: This is not the same as native isNaN which will return true for undefined and other
-        * non-numeric values. See http://es5.github.io/#x15.1.2.4.
-        * @param value The value to check.
-        * @return True if the value is NaN, else false.
-        **/
-        isNaN(value?: any): boolean;
-    }
-
     //_.isNull
     interface LoDashStatic {
         /**