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  * [ __ ](../../../index.html)
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  * __
  * [ List ](../list.html)
  * polars.Serie... 

#  polars.Series.list.concat  #

Series.list.  concat  (  _ other  :  [ list  ](https://docs.python.org/3/library/stdtypes.html#list "\(in Python v3.12\)") [  Series  ]  |  Series  |  [ list  ](https://docs.python.org/3/library/stdtypes.html#list "\(in Python v3.12\)") [  Any  ]  _ )  →  Series  [ [source]  ](https://github.com/pola-rs/polars/blob/py-0.20.23/py-polars/polars/series/list.py#L375-L395) # 
    

Concat the arrays in a Series dtype List in linear time.

Parameters  :

    

**other**

    

Columns to concat into a List Series

Examples

    
    
    >>> s1 = pl.Series("a", [["a", "b"], ["c"]])
    >>> s2 = pl.Series("b", [["c"], ["d", None]])
    >>> s1.list.concat(s2)
    shape: (2,)
    Series: 'a' [list[str]]
    [
        ["a", "b", "c"]
        ["c", "d", null]
    ]
    

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  * ` Series.list.concat()  `

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