python string indexing
str = 'codegrepper' # str[start:end:step] #by default: start = 0, end = len(str), step = 1 print(str[:]) #codegrepper print(str[::]) #codegrepper print(str[5:]) #repper print(str[:8]) #codegrep print(str[::2]) #cdgepr print(str[2:8]) #degrep print(str[2:8:2]) #dge #step < 0 : reverse print(str[::-1]) #reppergedoc print(str[::-3]) #rpgo # str[start:end:-1] means start from the end, go backward and stop at start print(str[8:3:-1]) #pperg
python string slicing
my_string = "Hey, This is a sample text" print(my_string[2:]) #prints y, This is a sample text print(my_string[2:7]) #prints y, Th excluding the last index print(my_string[2::2]) #prints y hsi apetx print(my_string[::-1]) #reverses the string => txet elpmas a si sihT ,yeH
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