bundles / numpy latest / numpy / strings / startswith

function

`numpy.strings:startswith`

source: build-install/usr/lib/python3.14/site-packages/numpy/_core/strings.py:449

Signature

def startswith(a, prefix, start = 0, end = None)

Summary

Returns a boolean array which is True where the string element in a starts with prefix, otherwise False.

Parameters

a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype
prefix : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype
start, end : array_like, with any integer dtype: With start, test beginning at that position. With end, stop comparing at that position.

Returns

out : ndarray: Output array of bools

Examples

import numpy as np
s = np.array(['foo', 'bar'])
s

✓

array(['foo', 'bar'], dtype='<U3')

np.strings.startswith(s, 'fo')
np.strings.startswith(s, 'o', start=1, end=2)

✗

array([ True, False])

See also

str.startswith

Aliases

numpy.char.startswith