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> startsWith('abc', 'a') [1] TRUE > startsWith('abc', 'c') [1] FALSE > endsWith('abc', 'a') [1] FALSE > endsWith('abc', 'c') [1] TRUE 
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The startswith() method returns True if a string starts with the specified prefix(string). If not, it returns False .
There are two built-in methods in Python to do the task. These are startswith() and endswith() methods. If any string starts with a given prefix then startswith() method will return true otherwise returns false and if any string ending with a given suffix then endswith() method will return true otherwise returns false.
The startswith() search is case-sensitive, as shown below. The start and end parameters limit the checking of a prefix in a string as indexes.
STARTSWITH is a string manipulation function that manipulates all string data types (BIT, BLOB, and CHARACTER), and returns a Boolean value to indicate whether one string begins with another.
As added to base in 3.3.0, startsWith (and endsWith) are exactly this.
> startsWith("what", "wha") [1] TRUE > startsWith("what", "ha") [1] FALSE https://stat.ethz.ch/R-manual/R-devel/library/base/html/startsWith.html
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