Python | String startswith()
The startswith() method returns True if a string starts with the given prefix otherwise returns False.
Syntax :
str.startswith(prefix, start, end)
Parameters :
prefix : prefix ix nothing but a string which needs to be checked. start : Starting position where prefix is needs to be checked within the string. end : Ending position where prefix is needs to be checked within the string.
NOTE : If start and end index is not provided then by default it takes 0 and length-1 as starting and ending indexes where ending indes is not included in our search.
Returns :
It returns True if strings starts with the given prefix otherwise returns False.
Examples:
Input : text = "geeks for geeks."
result = text.startswith('for geeks')
Output : False
Input : text = "geeks for geeks."
result = text.startswith('geeks', 0)
Output : True
Error : ValueError : This error is raised in the case when the argument string is not found in the target string
# Python code shows the working of # .startsswith() function text = "geeks for geeks." # returns False result = text.startswith('for geeks') print (result) # returns True result = text.startswith('geeks') print (result) # returns False result = text.startswith('for geeks.') print (result) # returns True result = text.startswith('geeks for geeks.') print (result) |
Output:
False True False True
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