StartsWith and endsWith strings methods in javaScript
Description of startsWith() and endsWith() Methods in JavaScript
The startsWith() and endsWith() methods are used to determine whether a string begins or ends with a specified substring. Both methods return a boolean value (true or false).
1. startsWith() Method
The startsWith() method checks if a string begins with a specific substring, optionally starting from a given position.
Syntax:
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string.startsWith(searchString, position)
searchString: The substring to check for.
position (optional): The index at which to start checking. Defaults to 0.
2. endsWith() Method
The endsWith() method checks if a string ends with a specified substring, optionally considering a defined length.
Syntax:
string.endsWith(searchString, length)
searchString: The substring to check for.
length (optional): The number of characters to consider from the start of the string. Defaults to the string's full length.
Key Features of Both Methods:
Case-sensitive (e.g., "Hello" and "hello" are different).
Works with words, phrases, and individual characters.
Does not modify the original string.
Returns true if the condition is met; otherwise, returns false.