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What is the numpy.char.startswith() function in Python?

Onyejiaku Theophilus Chidalu

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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Overview

The char.startswith() function in Python returns an array of Boolean values which is True where the string element in an input array of string starts with prefix. Otherwise, it returns False.

Syntax

char.startswith(a, prefix, start=0, end=None)
Syntax for the char.startswith() function

Parameters

The char.startswith()function takes the following parameter values:

  • a: An input array of strings.
  • prefix : A string representing the prefix to be searched for.
  • start, end: The optional start means that the test will begin at that position while an optional end means stopping the comparison at that position.

Return value

The char.startswith() function returns an array of Boolean values with the same shape as the input array a.

Code

import numpy as np
# creating input arrays
myarray1 = np.array(
["Theo",
"Theophilus",
"The",
"Theology"])
# printing the input array
print(myarray1)
# implementing the char.startswith()
# function on both arrays to see if they are equal
print(np.char.startswith
(myarray1,
"Theo",
start=0,
end=None))
Implementing the char.startswith() function

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numpy
python
communitycreator

CONTRIBUTOR

Onyejiaku Theophilus Chidalu

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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