Merge pull request #1401 from ascott18/patch-1

[Typescript] Fix missing type parameters on delete/head methods

index.d.ts

@@ -110,8 +110,8 @@ export interface AxiosInstance {
   };
   request<T = any>(config: AxiosRequestConfig): AxiosPromise<T>;
   get<T = any>(url: string, config?: AxiosRequestConfig): AxiosPromise<T>;
-  delete(url: string, config?: AxiosRequestConfig): AxiosPromise;
-  head(url: string, config?: AxiosRequestConfig): AxiosPromise;
+  delete<T = any>(url: string, config?: AxiosRequestConfig): AxiosPromise<T>;
+  head<T = any>(url: string, config?: AxiosRequestConfig): AxiosPromise<T>;
   post<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
   put<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
   patch<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;

test/typescript/axios.ts

@@ -120,6 +120,14 @@ axios.get<User>('/user', { params: { id: 12345 } })
 	.then(handleUserResponse)
 	.catch(handleError);
 
+axios.head<User>('/user')
+	.then(handleResponse)
+	.catch(handleError);
+
+axios.delete<User>('/user')
+	.then(handleResponse)
+	.catch(handleError);
+
 axios.post<User>('/user', { foo: 'bar' })
 	.then(handleUserResponse)
 	.catch(handleError);