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The Streams are the objects that facilitate you to read data from a source and write data to a destination. There are four types of streams in Node.js: Readable: This stream is used for reading operations. Writable: This stream is used for write operations. Duplex: This stream can be used for both reading and write … Read more

The Node.js Assert is a way to write tests. It provides no feedback when running your test unless one fails. The assert module provides a simple set of assertion tests that can be used to test invariants. The module is intended for internal use by Node.js, but can be used in application code via require … Read more

The Node.js provides Buffer class to store raw data similar to an array of integers but corresponds to a raw memory allocation outside the V8 heap. It is a global class and can be accessed in an application without importing a buffer module. Buffer class is used because pure JavaScript is not compatible with binary … Read more

Global installation of dependencies is stored in /npm directory. While local installation of dependencies stores in the local mode. Here local mode refers to the package installation in node_modules directory lying in the folder where Node application is present. Globally deployed packages cannot be imported using require() in Node application directly. On the other hand, … Read more

Operational errors are not bugs, but create problems with the system like request timeout or hardware failure. On the other hand, programmer errors are actual bugs. In Node.js, understanding the difference between operational errors and programmer errors is crucial for developing robust and reliable applications. Here’s a breakdown of the differences: Operational Errors: Definition: Operational … Read more