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We know the arithmetic operations between different arrays happens monthly if the arrays are of equal size awesome required specific size. But there are scenarios when we can take erase of unequal size and still apply arithmetic operations on them by enhancing one of the arrays by filling array with smaller ndim prepended with '1' in its shape. So basically broadcasting and array means changing its shape to any required shape.Rules of array BoradcastingArray with smaller ndim than the other is prepended with '1' in its shape.Size in each dimension of the output shape is maximum of the input sizes ... Read More
This module provides support for maintaining a list in sorted order without having to sort the list after each insertion of new element. We will focus on two functions namely insort_left and insort_right.insort_leftThis function returns the sorted list after inserting number in the required position, if the element is already present in the list, the element is inserted at the leftmost possible position. This function takes 4 arguments, list which has to be worked with, number to insert, starting position in list to consider, ending position which has to be considered. The default value of the beginning and end position ... Read More
When we instantiate a class in Python, all its variables and functions also get inherited to the new instantiated class. But there may be e occasions when we do not want some of the variables of the parent class to be inherited by the child class. In this article, we will explore two ways to do that.Instantiation ExampleIn the below example we show how the variables are instance heated from a given class and how the variables are shared across all the instantiated classes. Live Democlass MyClass: listA= [] # Instantiate Both the classes x = MyClass() y = ... Read More
Following is the code for adding properties and methods to an existing object in JavaScript −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result { font-size: 20px; font-weight: 500; color: blueviolet; } Add properties and methods to an existing object in JavaScript CLICK HERE Click on the above button to add property and methods to student object and display them let resEle = document.querySelector(".result"); let BtnEle = ... Read More
Currying − In currying a function takes another function and some arguments. The function then returns one function with one parameter only. It returns the function with one argument which can be chained together.Partial application − In partial application some of the arguments can be bind to some values to produce a function with less arguments.Following is the code for currying vs partial application in JavaScript −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result { font-size: 18px; ... Read More
Following is the code for drawing an image in canvas using JavaScript −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } Drawing an image in canvas CLICK HERE Click on the above button to draw the image in canvas let resEle = document.querySelector(".result"); let BtnEle = document.querySelector(".Btn"); BtnEle.addEventListener("click", () => { var c = document.querySelector(".canvas1"); var ctx = c.getContext("2d"); var img = document.querySelector(".flower"); ctx.drawImage(img, 10, 10); }); OutputOn clicking the ‘CLICK HERE’ button −
We have a list containing only numbers. We plan to get the average of a set of sequential numbers from the list which keeps rolling from the first number to next number and then to next number and so on.ExampleThe below example simplifies the requirement of finding the average of each 4-length consecutive elements of the list.Given list: [10, 12, 14, 16, 18, 20, 22, 24, 26] Average of every segment of 4 consecutive numbers: [13.0, 15.0, 17.0, 19.0, 21.0, 23.0]With sum and rangeWe use the list comprehension approach to take the sum of the consecutive numbers by ... Read More
JavaScript treats functions as objects and allow us to pass functions as parameter to another function and even return functions from other functions. In JavaScript the functions are first class functions meaning we can store them in variable, objects and array. The higher order functions can take function, return them or do both.Following is the code to implement first class functions in JavaScript −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result, .sample { font-size: 18px; font-weight: ... Read More
JavaScript has the following values evaluate to false when evaluated as Boolean type − false0empty string: "" , '' , or ``nullundefinedNaN — not a number valueFollowing is the code for identifying falsy values in JavaScript −Example Live Demo Document body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result{ font-size: 20px; font-weight: 500; color: blueviolet; } Identifying Falsy values in JavaScript. CLICK HERE Click on the above button to identify some of the ... Read More
TKinter is a Python module which is used for GUI programming in Python. We create a Canvas and place our UI components with many properties and behaviors in it. In this article, we will see e how to use the ask essay file function to save files created through Python programs into the local drives.We first create a canvas on which we again place a button using the TTK dot button function. Then declare another function that will use the ask fine to define the file type and save the file into location in the local drive.Examplefrom tkinter import * ... Read More