Answered: (do not use any of the respective…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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(do not use any of the respective native JS methods to implement your solutions(javascrpt)
JavaScript syntax, functions, and higher-order functions, and to better understand JavaScript and Array methods.
do not copy from chegg)

reduce()

Without using the native “Array.prototype.reduce” method of JavaScript, compose a function titled “myReduce” that will take in an array of elements and executes a callback function (provided by you) on each of those elements.

includes()

Without using the native “Array.prototype.includes” method of JavaScript, compose a function titled “myIncludes” that will take in an array of elements and indicates whether or not a target element is contained within the input array. This returns a boolean.

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