Shift array method in javascript

The shift() method in JavaScript is used to remove the first element from an array. It is a mutating method, meaning it modifies the original array by changing its contents and reducing its length. The method returns the removed element and shifts all remaining elements one position to the left, which also decreases the array's length by one.
Key Characteristics:
• Removes the first element from the array.
• Modifies the original array (mutating method).
• Returns the removed element.
• Shifts all remaining elements to lower indexes (i.e., the second element moves to the first position, the third to the second, etc.).
• If the array is empty, shift() returns undefined and does not alter the array.
Use Cases for shift() Method:
Queue Operations (FIFO - First In, First Out): shift() is commonly used in situations where you want to handle elements in the order they were added, such as in implementing a queue.
Real-Time Data Manipulation: When processing data in a way that the oldest elements need to be removed first (e.g., removing the first log or event).