Numpy string operations | startswith() function
Last Updated :
29 Aug, 2020
numpy.core.defchararray.startswith() function returns a boolean array which is True where the string element in starts with prefix, otherwise False.
Syntax : numpy.core.defchararray.startswith(arr, prefix, start = 0, end = None)
Parameters :
arr : [array-like of str or unicode] Array-like of str.
prefix : [str] Input string.
start, end : [int, optional] With optional start, test beginning at that position. With optional end, stop comparing at that position.
Return : [ndarray] Return the array of booleans.
Code #1 :
Python3
import numpy as geek
arr = "GeeksforGeeks - A computer science portal"
prefix = 'Geeks'
gfg = geek.char.startswith(arr, prefix, start = 0 , end = None )
print (gfg)
|
Output :
True
Code #2 :
Python3
import numpy as geek
arr = "GeeksforGeeks - A computer science portal"
prefix = 'None'
gfg = geek.char.startswith(arr, prefix, start = 0 , end = None )
print (gfg)
|
Output :
False
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