cudf.core.accessors.string.StringMethods.startswith

StringMethods.startswith(pat: str | tuple[str, ...]) → Series | Index

Test if the start of each string element matches a pattern.

Equivalent to str.startswith().

Parameters:

patstr or tuple[str, …]

String pattern or tuple of patterns. Regular expressions are not accepted.

Returns:

Series or Index of bool

A Series of booleans indicating whether the given pattern matches the start of each string element.

See also

endswith

Same as startswith, but tests the end of string.

contains

Tests if string element contains a pattern.

Examples

>>> import cudf
>>> s = cudf.Series(['bat', 'Bear', 'cat', None])
>>> s
0     bat
1    Bear
2     cat
3    <NA>
dtype: object
>>> s.str.startswith('b')
0     True
1    False
2    False
3     <NA>
dtype: bool