Extract common entries in two arrays

[Iñaki Baz Castillo]

Hi, how to get an array with just common entries from two arrays?:

array1 =3D ["q", "w", "e", "r", "t", "y"]
array2 =3D ["w", "t", "z"]

I want to get:

array_common =3D ["w", "t"]

I don0t find an ellegant and fast way to get it. Any help?
Thanks a lot.

=2D-=20
I=C3=B1aki Baz Castillo

 

[Iñaki Baz Castillo]

El Domingo, 15 de Marzo de 2009, I=C3=B1aki Baz Castillo escribi=C3=B3:

Hi, how to get an array with just common entries from two arrays?:

array1 =3D ["q", "w", "e", "r", "t", "y"]
array2 =3D ["w", "t", "z"]

I want to get:

array_common =3D ["w", "t"]

array_common =3D array1 - (array1 - array2)
=3D> ["w", "t"]




=2D-=20
I=C3=B1aki Baz Castillo

 

[Ben Bleything]

=A0 array1 =3D ["q", "w", "e", "r", "t", "y"]
=A0 array2 =3D ["w", "t", "z"]

I want to get:
=A0 array_common =3D ["w", "t"]

array_common =3D array1 - (array1 - array2)
=3D> ["w", "t"]

Easier:

array1 & array2
=3D> ["w", "t"]

Ben

 

[Iñaki Baz Castillo]

El Domingo, 15 de Marzo de 2009, Ben Bleything escribi=F3:

=A0 array1 =3D ["q", "w", "e", "r", "t", "y"]
=A0 array2 =3D ["w", "t", "z"]

I want to get:
=A0 array_common =3D ["w", "t"]

array_common =3D array1 - (array1 - array2)
=3D> ["w", "t"]

Easier:

array1 & array2
=3D> ["w", "t"]

Great!


=2D-=20
I=F1aki Baz Castillo

 

[Harry Kakueki]

Hi, how to get an array with just common entries from two arrays?:

array1 =3D ["q", "w", "e", "r", "t", "y"]
array2 =3D ["w", "t", "z"]

I want to get:

array_common =3D ["w", "t"]

I don0t find an ellegant and fast way to get it. Any help?
Thanks a lot.

array1 & array2

Harry

--=20
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