VectorQ

VectorQ[expr] returns True if expr is a vector, False otherwise.

Attributes[VectorQ] := {Protected}

Simple examples

In[1]:= VectorQ[{1, 2, c}]
Out[1]= True

In[2]:= VectorQ[{1, 2, foo[a]}]
Out[2]= True

In[3]:= VectorQ[foo[1, 2, 3]]
Out[3]= False

In[4]:= VectorQ[{1, 2, 3, {}}]
Out[4]= False

In[5]:= VectorQ[{f[a], f[b]}]
Out[5]= True

In[6]:= VectorQ[{a, c}]
Out[6]= True

In[7]:= VectorQ[{}]
Out[7]= True