Delete nodes based on a condition from linked list | flexible deletion operation: Part 2
This function is used to delete all nodes from a linked list that satisfy a specific condition. This condition is determined by a bool condition(int data) function which accepts the data of a node and returns true if the node should be deleted and false otherwise.
The function begins by checking if the linked list is empty. If it is, the function ends immediately as there are no nodes to delete. If the list is not empty, the function proceeds to check if the head node (the first node) of the list satisfies the bool condition(int data). If it does, the head node is deleted and the function checks the next node. This continues until the function finds a head node that does not satisfy the condition(int data) or until the list is empty. Next, the function iterates over the rest of the list, checking each node to see if it satisfies the condition(int data). If a node does, it is deleted. Throughout this process, the function maintains the integrity of the list by correctly updating the head, tail, and len properties.
the deleteByCondition(). It's a powerful function that gives you a lot of flexibility when managing a linked list data strucuture.
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