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Implementation of the array update operation in nodejs - code Please follow the following code samples to get more familiar with array update functionality. One specialty of an array is that the array container should be in fixed size and all the elements should be in the same type.Īrray update is quite an easy operation that you just need to traverse through the given array until you find the required element to update. The array is one of the most used data structures when programmers implementing their algorithms. Get your hands dirty with a stack data structure because we will use these data structures in the future when we are solving real-life problems in the algorithms section.
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Stack implementation and all supportive functional implementations will be found in this codebase. There are other functions like isEmpty(), isFull(), and printStackItems() which can be used as supportive functions that will help you to use the stack efficiently. Step 1 − Checks if the stack is empty by looking at the array length Step 2 − If the stack is empty, print an error, exit Step 3 − If the stack is not empty, get the element which is pointing at the top of the stack. the peek operation just returns the value at the top of the stack. We can define an algorithm to implement the peek operation in the stack class. The peek function will display the topmost element from the stack, and this operation will not remove the item from the stack like in the pop operation. Step 4 − Decreases the size of the stack by 1, automatically the pointer of the top most item will changed to the below item. We can define an algorithm to implement the pop operation in the stack class. Even though it seems like the topmost element removed from the stack, still that element will not be completely removed, only the pointer will move to the below position. The pop function will remove the topmost element from the stack, and the stack item count will be reduced by one.
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Step 4 − Add a new element to the new empty space which is in the top of the stack Step 5 − Return success.
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Step 2 − If the stack is full, print an error Step 3 − If the stack is not full for the given maximum size, increase the top by one and point the pointer to the next empty space. Step 1 − Checks if the stack is full(assume that the list is implemented based on a dynamic array) for the given size or not. We can define an algorithm to implement the push operation in the stack class. Here you will input an item to the top of the array. Once you defined the stack class one of the main functionalities is push function. Please find the attached codebase in this Github link.