When server-side programming languages such as PHP or C are used, the code is processed sequentially. A server will not execute a new instruction in the code until the previous one has been completed and delivered a result.
Asynchronous processing is used in this instance. The execution of any additional codes is halted until the current process is completed. You can hire nodejs web development company through https://jetruby.com/nodejs-development-companies.
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This causes significant delays in complex operations, such as accessing file systems, databases, and web services.
Many languages and runtime environments that are based on them allow for parallel execution of processes. These threads can be used as separate executions in a process and are able to perform actions while the rest is running.
The framework is used primarily for web server programming but it can also be used in other areas such as developing desktop or real-time apps, scripts, tools for command line, and creating tools for the commandline.