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slice notation python

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Adorable Antelope answered on November 22, 2021 Popularity 8/10 Helpfulness 1/10

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slice notation python

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a[-1]    # last item in the array
a[-2:]   # last two items in the array
a[:-2]   # everything except the last two items

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Source: stackoverflow.com

Tags: notation python slice

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Contributed on Nov 22 2021

Adorable Antelope

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slice notation python

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a[::-1]    # all items in the array, reversed
a[1::-1]   # the first two items, reversed
a[:-3:-1]  # the last two items, reversed
a[-3::-1]  # everything except the last two items, reversed

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Source: stackoverflow.com

Tags: notation notatio

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Contributed on Nov 22 2021

Adorable Antelope

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slice notation python

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a[start:stop:step] # start through not past stop, by step

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Source: stackoverflow.com

Tags: notation notatio

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Contributed on Nov 22 2021

Adorable Antelope

0 Answers Avg Quality 2/10

slice python

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The basic rules of slice are:
I'''
 The slice generates index/integers from - start, start + step, start +
step + step, and so on. All the numbers generated must be less than
the stop value when step is positive.'''
II'''  
 If step value is missing then by default is taken to be 1 '''
III'''
 If start value is missing and step is positive then start value is by default
taken as 0.'''
IV'''
 If stop value is missing and step is positive then start value is by
default taken to mean till you reach the ending index(including the
ending index)'''
V'''
 A negative step value means the numbers are generated in
backwards order i.e. from - start, then start - step, then start -step
-step and so on. All the numbers generated in negative step must
be greater than the stop value.'''
VI'''
 If start value is missing and step is negative then start value takes default
value -1'''
VII'''
 If stop value is missing and step is negative then stop value is by
default taken to be till you reach the first element(including the 0
index element)'''

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Source: Grepper

Tags: python py

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Contributed on Mar 04 2022

Gr@Y_orphan_ViLL@in##

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slice notation python

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