feat: adding np.ndarray.var to the frontends (ivy-llc#22336)

Co-authored-by: ivy-branch <[email protected]>
Co-authored-by: Anwaar Khalid <[email protected]>

ivy/functional/frontends/numpy/ndarray/ndarray.py

@@ -621,6 +621,19 @@ def __lshift__(self, value, /):
     def round(self, decimals=0, out=None):
         return np_frontend.round(self, decimals=decimals, out=out)
 
+    def var(
+        self, axis=None, dtype=None, out=None, ddof=0, keepdims=False, *, where=True
+    ):
+        return np_frontend.var(
+            self,
+            axis=axis,
+            dtype=dtype,
+            out=out,
+            ddof=ddof,
+            keepdims=keepdims,
+            where=where,
+        )
+
 
 # --- Helpers --- #
 # --------------- #

ivy_tests/test_ivy/test_frontends/test_numpy/test_ndarray/test_ndarray.py

@@ -11,6 +11,9 @@
     assert_all_close,
     BackendHandler,
 )
+from ivy_tests.test_ivy.test_functional.test_core.test_statistical import (
+    _statistical_dtype_values,
+)
 import ivy_tests.test_ivy.test_frontends.test_numpy.helpers as np_frontend_helpers
 from ivy_tests.test_ivy.test_functional.test_core.test_linalg import (
     _get_first_matrix_and_dtype,
@@ -3699,6 +3702,52 @@ def test_numpy_ndarray_transpose(
     )
 
 
+# var
+@handle_frontend_method(
+    class_tree=CLASS_TREE,
+    init_tree="numpy.array",
+    method_name="var",
+    dtype_x_axis=_statistical_dtype_values(function="var"),
+    dtype=helpers.get_dtypes("valid", full=False, none=True),
+    where=np_frontend_helpers.where(),
+    keepdims=st.booleans(),
+)
+def test_numpy_ndarray_var(
+    dtype_x_axis,
+    frontend_method_data,
+    init_flags,
+    method_flags,
+    frontend,
+    backend_fw,
+    on_device,
+    keepdims,
+    where,
+    dtype,
+):
+    input_dtypes, x, axis = dtype_x_axis
+    helpers.test_frontend_method(
+        init_input_dtypes=input_dtypes,
+        method_input_dtypes=input_dtypes,
+        init_all_as_kwargs_np={
+            "object": x[0],
+        },
+        method_all_as_kwargs_np={
+            "axis": axis,
+            "dtype": dtype,
+            "keepdims": keepdims,
+            "where": where,
+        },
+        frontend=frontend,
+        backend_to_test=backend_fw,
+        frontend_method_data=frontend_method_data,
+        init_flags=init_flags,
+        method_flags=method_flags,
+        rtol_=1e-2,
+        atol_=1e-2,
+        on_device=on_device,
+    )
+
+
 # view
 @handle_frontend_method(
     class_tree=CLASS_TREE,