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What is React? React is a JavaScript library and is used to develop the frontend of web applications. The library came into the picture in 2013 and now it is being widely used to develop user interfaces. Dynamic web applications can be easily created you have to write less code in comparison to JavaScript and this code can add more functionalities to the app being developed. Applications developed on this platform perform well. Price Plans of React React is an open-source and free library and there is no need to pay for anything to use the framework. Why React Alternatives? ... Read More
IEEE 802.3 is a set of standards and protocols that define Ethernet-based networks. Ethernet technologies are primarily used in LANs, though they can also be used in MANs and even WANs. IEEE 802.3 defines the physical layer and the medium access control (MAC) sub-layer of the data link layer for wired Ethernet networks.IEEE 802.3 Popular VersionsThere are a number of versions of IEEE 802.3 protocol. The most popular ones are.IEEE 802.3: This was the original standard given for 10BASE-5. It used a thick single coaxial cable into which a connection can be tapped by drilling into the cable to the ... Read More
Full Wave Rectifier is a diode circuit which is used to transform the complete cycle of Alternating Voltage (AC Supply) to Direct Voltage (DC Supply).In full wave rectification, current flows through the load in the same direction for the complete cycle of input AC Supply.Types of Full Wave RectifiersCentre Tap Full Wave RectifierFull Wave Bridge RectifierCentre Tap Full Wave RectifierThe circuit of centre tap full wave rectifier consists of following main components −Two DiodesA centre-tapped transformerA load resistanceWorking of Centre – Tap FWR CircuitPositive Half CycleDuring the positive half cycle of input AC voltage, the end A of secondary winding ... Read More
What is Mojeek? Mojeek is a search engine which provides search results on the basis of its own index of web pages. It does not rely on other search engines to provide results. Mojeek has its own crawler that helps in making an index. Different sets of results will always be found for a query. It also uses its own ranking algorithm to give rank to web pages and URLs. Why Mojeek Alternatives? A large index is needed to provide search results The user interface needs improvement How to Choose a Mojeek Alternative? There are many advantages to ... Read More
What is Heroku? Heroku is a cloud-based app that developers use to manage, scale, and deploy different apps. The platform is easy to use and provides great opportunities for developers to launch their apps in the market. There is no need to maintain and manage any servers, hardware, or infrastructure. The app has many features which developers can use to enhance their productivity. Why Heroku Alternatives? Low network performance High inbound and outbound latency Servers cannot be easily controlled Complex apps cannot be developed The cost is high Switching from one platform to another is difficult How to ... Read More
Direct mapping is a procedure used to assign each memory block in the main memory to a particular line in the cache. If a line is already filled with a memory block and a new block needs to be loaded, then the old block is discarded from the cache.The figure shows how multiple blocks from the example are mapped to each line in the cache.Just like locating a word within a block, bits are taken from the main memory address to uniquely describe the line in the cache where a block can be stored.Example − Consider a cache with = ... Read More
Operating Principle of Single-phase Induction MotorA single-phase induction motor consists of a squirrel cage rotor and a stator carrying a single-phase winding. When a single-phase AC supply is fed to the stator winding, a pulsating magnetic field (not the rotating) is produced. Under these conditions, the rotor does not rotate due to inertia. Hence, a single-phase induction motor is inherently not self-starting, but requires some auxiliary starting means.If the stator winding of a single-phase induction motor is excited and the rotor is rotated by an auxiliary means and the starting device is then removed, the motor continues to rotate in ... Read More
Ethernet is a set of technologies and protocols that are used primarily in LANs. It was first standardized in 1980s by IEEE 802.3 standard. IEEE 802.3 defines the physical layer and the medium access control (MAC) sub-layer of the data link layer for wired Ethernet networks. Ethernet is classified into two categories: classic Ethernet and switched Ethernet.Classic Ethernet is the original form of Ethernet that provides data rates between 3 to 10 Mbps. The varieties are commonly referred as 10BASE-X. Here, 10 is the maximum throughput, i.e. 10 Mbps, BASE denoted use of baseband transmission, and X is the type ... Read More
Let's say the following is our JSON string −var details = [ { customerName: "Chris", customerAge: 32 }, { customerName: "David", customerAge: 26 }, { customerName: "Bob", customerAge: 29 }, { customerName: "Carol", customerAge: 25 } ]To remove JSON element, use the delete keyword in JavaScript.ExampleFollowing is the complete code to remove JSON element −var details = [ { customerName: "Chris", ... Read More
It is the number of vertices adjacent to a vertex V. Notation − deg(V). In a simple graph with n number of vertices, the degree of any vertices is − deg(v) = n – 1 ∀ v ∈ G A vertex can form an edge with all other vertices except by itself. So the degree of a vertex will be up to the number of vertices in the graph minus 1. This 1 is for the self-vertex as it cannot form a loop by itself. If there is a loop at any of the vertices, then it is not a ... Read More