python check item in array code example

Example 1: Check if element in list Python

listA = [item1, item2, item3]
if item4 in listA:
  print('yes, item4 is in the list')
else:
  print('no, item4 is not in the list')

Example 2: if string is in array python

if item in my_list:
    # whatever

Example 3: how to check an array for a value in python

s = set(a)
if 7 in s:
  # do stuff

Example 4: python check array exists

array = [1,2,3,4]
exists_2 = 2 in array
print(exists_2) # True
exists_5 = 5 in array
print(exists_5) # False

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Javascript Example

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