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The most common way to define a function in JavaScript is by using the “function” keyword, followed by a unique function name, a list of parameters (that might be empty), and a statement block surrounded by curly braces.SyntaxHere’s the syntax − Try the following example. It defines a function called sayHello that takes no parameters,
Functions which have been commented out in this code. You can switch to those as well. We've also moved the Queue, Stack, and PriorityQueue classes in different modules that can be imported using either import statements or using require calls. Here is the complete implementation of the Graph class − Exampleconst Queue = require("./Queue"); const Stack = require("./Stack"); const PriorityQueue = require("./PriorityQueue"); class Graph { constructor() { this.edges = {}; this.nodes = []; } addNode(node) { this.nodes.push(node); this.edges[node] = []; } ... Read More
Here is the complete implementation of the BinarySearchTree Class −Exampleclass BinarySearchTree { constructor() { // Initialize a root element to null. this.root = null; } insertIter(data) { let node = new this.Node(data); // Check if the tree is empty if (this.root === null) { // Insert as the first element this.root = node; return; } let currNode = this.root; while (true) { if (data < currNode.data) { // Set ... Read More
The following code prints the list of functions of the given class as followsExampleclass foo: def __init__(self): self.x = x def bar(self): pass def baz(self): pass print (type(foo)) import inspect print(inspect.getmembers(foo, predicate=inspect.ismethod))OutputThe output is [('__init__', ), ('bar', ), ('baz', )]
In SAP system, you can use tools like RSECNOTE and SAP EarlyWatch Alert which can be to find out the patches and verify their implementation status. You can access RSECNOTE by executing Transaction code: SA38 or ST13.RSECNOTE tool in SAP system is used to determine which important security notes or hot notes are missing in a system.You can refer more details about this tool in SAP OSS Note 888889. You can access this tool by calling T-Code: ST13 and entering RSECNOTE and then press F8 button.888889 - Automatic checks for security notes using RSECNOTE (outdated)You use transaction ST13 to start ... Read More
Drawing on the HTML canvas is to be done with JavaScript. Use the HTML DOM Method getElementById() and getContext() before drawing on the canvas.For that, follow some steps −You need to use the getElementById() method to find the canvas element.Use the getContext(), which is drawing object for the canvas. It provides the methods and properties for drawing.After that draw on the canvas.ExampleYou can try to run the following code to draw canvas on JavaScript − HTML Canvas var canvas = document.getElementById("newCanvas"); var ctxt = canvas.getContext("2d"); ctxt.fillStyle = "#56A7E2"; ctxt.fillRect(0,0,250,120);
An AVL tree (named after inventors Adelson-Velsky and Landis) is a self-balancing binary search tree. A self-balancing tree is a tree that performs some rotation within it's subtrees so that it can be balanced on both left and right side.These trees are particularly helpful in cases where insertions cause a tree to become heavy on one side. Balanced trees keep the lookup times close to O(log(n)) as opposed to an completely unbalanced tree that leans more towards the O(n) side.
Specifies height of the canvas.The HTML tag is used to draw graphics, animations, etc. using scripting. The tag introduced in HTML5.Let’s see a simple element with two specific attributes width and height along with all the core HTML5 attributes like id, name, and class etc.Here are the attributes −AttributeValueDescriptionheight pixelsSpecifies height of the canvas.width pixelsSpecifies width of the canvas.ExampleYou can try to run the following code to learn how to use canvas to create a rectangle. The canvas element has a DOM method called getContext, which obtains rendering context and its drawing functions. This function takes one ... Read More
AVL tree checks the height of the left and the right sub-trees and assures that the difference is not more than 1. This difference is called the Balance Factor.For example, in the following trees, the first tree is balanced and the next two trees are not balanced −In the second tree, the left subtree of C has height 2 and the right subtree has height 0, so the difference is 2. In the third tree, the right subtree of A has height 2 and the left is missing, so it is 0, and the difference is 2 again. AVL tree ... Read More
To balance itself, an AVL tree may perform the following four kinds of rotations −Left rotationRight rotationLeft-Right rotationRight-Left rotationThe first two rotations are single rotations and the next two rotations are double rotations. To have an unbalanced tree, we at least need a tree of height 2. With this simple tree, let's understand them one by one.Left RotationIf a tree becomes unbalanced, when a node is inserted into the right subtree of the right subtree, then we perform a single left rotation −In our example, node A has become unbalanced as a node is inserted in the right subtree of ... Read More