Basic Examples
Basic Examples
Find the highest numbered slot in a function:
[Function[#
2
In[]:=
1
Out[]=
[Function[#1+#2]]
In[]:=
2
Out[]=
Function{x,y,z},Sinx+
y
z
In[]:=
3
Out[]=
In this function, slot 2 goes unused, but it will still be counted:
[Function[#1+#3]]
In[]:=
3
Out[]=
Scope
Scope
Slots in inner functions will not be counted:
[Function[Function[#1+#2+#3][#1,2#1,3#1]]]
In[]:=
1
Out[]=
A function that uses will be counted as having infinite arguments:
[Function[Plus[##]]]
In[]:=
∞
Out[]=
String slots will be counted as being part of the first argument:
[Function[#a+#b]]
In[]:=
1
Out[]=
[Function[#a+#b+#2]]
In[]:=
2
Out[]=
ArgumentCount
[Compile[{x,y,z},Sqrt[xyz]]]
In[]:=
3
Out[]=
Options
Options
IgnoreSlotSequence
IgnoreSlotSequence
A function that uses will be counted as having infinite arguments:
[Function[Plus[#1,#2,##]]]
In[]:=
∞
Out[]=
This behavior can be changed with the option:
"IgnoreSlotSequence"
[Function[Plus[#1,#2,##]],"IgnoreSlotSequence"True]
In[]:=
2
Out[]=