(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.

(Intro to Java)

(Querying an Array of Invoice Objects) Use the class Invoice provided in the lab assignment to create an array of Invoice objects.Class Invoice includes four properties—a PartNumber (type int), a PartDescription (type string), a Quantity of the item being purchased (type int) and a Price (type decimal).Write a console application that performs the following queries on the array of Invoice objects and displays the results:a) Use LINQ to sort the Invoice objects by PartDescription.b) Use LINQ to sort the Invoice objects by Price.c) Use LINQ to select the PartDescription and Quantity and sort the results by Quantity.d) Use LINQ to select from each Invoice the PartDescription and the value of the Invoice(i.e., Quantity * Price). Name the calculated column InvoiceTotal. Order the results by Invoice value. [Hint: Use let to store the result of Quantity * Price in a new range variable total.]e) Using the results of the LINQ query in Part d, select the InvoiceTotals in the range$200 to…

Uses mathlab, make sure not used advance code. I cannot used if or return or anything more advance than that.

(Java) Q1 explain the answers to the below questions using step-by-step explanation.

(Tic-Tac-Toe) Write a program that allows two players to play the tictac-toe game. Your program must contain the class ticTacToe to implement a ticTacToe object. Include a 3-by-3 two-dimensional array, as a private member variable, to create the board. If needed, include additional member variables. Some of the operations on a ticTacToe object are printing the current board, getting a move, checking if a move is valid, and determining the winner after each move. Add additional operations as needed.