Merge pull request #5102 from chrootsu/lodash-method

lodash: added _.method() method

lodash/lodash-tests.ts

@@ -1385,6 +1385,18 @@ result = <() => boolean>_(true).constant<boolean>();
 result = <() => any[]>_(['a']).constant<any[]>();
 result = <() => {}>_({}).constant<{}>();
 
+// _.method
+class TestMethod {
+    a = {
+        b: (a1: number, a2: number) => a1 + a2
+    }
+}
+var TestMethodObject = new TestMethod();
+result = <number>(_.method<number>('a.b', 1, 2))(TestMethodObject);
+result = <number>(_.method<number>(['a', 'b'], 1, 2))(TestMethodObject);
+result = <number>(_('a.b').method<number>(1, 2).value())(TestMethodObject);
+result = <number>(_(['a', 'b']).method<number>(1, 2).value())(TestMethodObject);
+
 result = <string>_.VERSION;
 result = <_.Support>_.support;
 result = <_.TemplateSettings>_.templateSettings;

lodash/lodash.d.ts

@@ -6826,6 +6826,47 @@ declare module _ {
         identity<T>(value?: T): T;
     }
 
+    //_.method
+    interface LoDashStatic {
+        /**
+         * Creates a function that invokes the method at path on a given object. Any additional arguments are provided
+         * to the invoked method.
+         * @param path The path of the method to invoke.
+         * @param args The arguments to invoke the method with.
+         * @return Returns the new function.
+         */
+        method<TResult>(path: string, ...args: any[]): (object: any) => TResult;
+
+        /**
+         * @see _.method
+         */
+        method<TResult>(path: any[], ...args: any[]): (object: any) => TResult;
+    }
+
+    interface LoDashWrapper<T> {
+        /**
+         * @see _.method
+         */
+        method<TResult>(...args: any[]): LoDashWrapper<(object: any) => TResult>;
+
+        /**
+         * @see _.method
+         */
+        method<TResult>(...args: any[]): LoDashWrapper<(object: any) => TResult>;
+    }
+
+    interface LoDashArrayWrapper<T> {
+        /**
+         * @see _.method
+         */
+        method<TResult>(...args: any[]): LoDashWrapper<(object: any) => TResult>;
+
+        /**
+         * @see _.method
+         */
+        method<TResult>(...args: any[]): LoDashWrapper<(object: any) => TResult>;
+    }
+
     //_.mixin
     interface LoDashStatic {
         /**