SubstringFromIndex

SubstringFromIndex is a method commonly found in programming languages and libraries for manipulating strings. Its primary function is to extract a portion of a string, starting from a specified index and continuing to the end of the original string. The index is typically zero-based, meaning the first character of the string is at index 0, the second at index 1, and so on.

When using substringFromIndex, it's important to consider the valid range of indices. If the provided index is less than zero, the behavior might be undefined or result in an error, depending on the specific implementation. Similarly, if the index is greater than or equal to the length of the string, the method might return an empty string or raise an exception.

The result of substringFromIndex is a new string that contains the characters from the starting index to the very last character of the original string. This operation does not modify the original string; it simply creates and returns a new one. This method is useful for tasks such as parsing data, extracting specific parts of URLs, or processing text in various ways. For example, if you have the string "HelloWorld" and call substringFromIndex with an index of 5, the returned string would be "World".