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Singleton Pattern - Design Patterns

on March 17, 2020

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When and how to use load balance

Load balancing is a technique used to distribute workloads across multiple servers, networks, or other computing resources, in order to optimize resource utilization, increase throughput, and improve reliability. Load balancing can be used in a variety of scenarios, including: To distribute incoming network traffic across multiple servers, in order to prevent any single server from becoming a bottleneck and ensure high availability. To distribute computational workloads across multiple processors or cores, in order to improve performance and efficiency. To distribute database workloads across multiple database servers, in order to improve performance and reliability. There are several different algorithms and strategies that can be used for load balancing, including: Round Robin: Requests are distributed in a cyclical manner to each server in turn. Least Connections: The server with the fewest current connections is chosen. ...

How to make an HTTP request in Javascript

There are several ways to make HTTP requests in JavaScript, including using the built-in XMLHttpRequest object or using a modern alternative such as the fetch API. Here's an example of how you could make a GET request using XMLHttpRequest : And here's an example of how you could make a GET request using the fetch API: Note that the fetch API is not supported in older browsers, so you might need to include a polyfill if you need to support those. You can include a polyfill for the fetch API by including a library that provides the implementation, such as the fetch polyfill . You can either download the library and include it in your project, or you can include it directly from a CDN. For example, to include the fetch polyfill from the CDN https://cdn.jsdelivr.net/npm/whatwg-fetch@3.0.0/dist/fetch.umd.js , you would add the following script tag to your HTML file: <script src = "https://cdn.jsd...

Create an accordion with html, css and javascript

HTML <div class="accordion"> <div class="panel"> <div class="panel-header" onclick="togglePanel(this)">Panel 1</div> <div class="panel-content"> <p>Content for Panel 1</p> </div> </div> <div class="panel"> <div class="panel-header" onclick="togglePanel(this)">Panel 2</div> <div class="panel-content"> <p>Content for Panel 2</p> </div> </div> <div class="panel"> <div class="panel-header" onclick="togglePanel(this)">Panel 3</div> <div class="panel-content"> <p>Content for Panel 3</p> </div> </div> </div> CSS /* Style the accordion */ .accordion { border: 1px solid #ccc; } /* Style the panel header...

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Singleton Pattern - Design Patterns

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