Oracle Senior Principal Consultant Interview Questions and Answers

Custom reduce function in JavaScript

• Create a function that takes an array, a callback function, and an initial value as parameters

• Iterate through the array and apply the callback function to each element, updating the accumulator

• Return the final accumulator value

Box sizing in CSS determines how the total width and height of an element is calculated.

• Box-sizing property can have values of content-box (default) or border-box

• content-box includes only the content, border, and padding in the width and height calculations

• border-box includes the content, padding, and border in the width and height calculations

Binary First Search is a search algorithm that explores the nodes in a binary tree in a level-order traversal.

• Start at the root node and add it to a queue.

• While the queue is not empty, dequeue a node and visit it. Then enqueue its children.

• Repeat until all nodes have been visited.