Memory management and tracking in NodeJS – The Importance of Technology!

Technological advancement in web applications is becoming more sophisticated, which is why it is important to understand how everything works. Memory allocation in the NodeJS web applications provides a way to dynamically allocate memory bits for programs when requested for it. Memory allocation at the application level can be automatic or manual.

What is the memory allocation in NodeJS?

To know about memory allocation and how it works, we first have to understand that memory in NodeJS web applications is divided into 3 segments, and all the segments together form a resident set. Memory is allocated separately for new objects and there is a garbage collector which runs in periodically.

Memory consumption can be classified into three major categories:

·   The code, where the written algorithm is executed.

· The call stack, where functions and local variables are available with a number, string. or Boolean.

· The heap memory that is performed with the automatic allocation of local variables.

As shown by the developers of a NodeJS development company, it is very important to understand how the runtime works internally to avoid problems and to optimize the application as well. Proper memory management is required to allocate memory chunks when needed and free up memory space when they are no longer needed. This is done to reuse memory.

How to fix the memory leaks in NodeJS web applications?

For the creation of web applications NodeJS framework can be the best in class framework that is growing in popularity in leaps and bounds. It can now be called the universal web app development framework that is efficient and data-intensive. However, the memory leaks can be fixed with an exact Memory allocation system and by understanding the reason behind the leak.

·   Fixation of global variables:

A global variable is created accidentally when a variable is assigned without declaring it. NodeJS is a JavaScript framework that hoists global variables that have a value. Better use the strict mode in JavaScript to avoid memory leaks. Using the strict mode helps in preventing errors like value assignment without declaring it.

·   Effective use of closures:

Memory leaks can also be caused by closures in the application where there is a function ‘parent’ and two other functions – the ‘child’ and an unnamed function. Here, the memory leaks can be fixed by nullifying the local variable without the reference to its global variables.

·  Proper use of Stack & Heap memory:

Always try to use stack variables wherever it is possible because a stack variable has a fixed amount of memory that can help avoid dynamic memory allocation. Furthermore, it would be best to not access the arrays, objects, and heap memory variables from the stack ones.

·  Upstream code:

There can be times when a memory leak can be due to an upstream or remote code on which the application is dependent for execution. This might affect the application’s performance due to dependency on memory leakage. So it is worth checking the performance of the application dependencies.

Concluding, in present-day web applications, memory leaks are one of the common performance issues that can badly affect the application and your business goals. So, according to the NodeJS developers in India, it is essential to address memory leaks to keep the damage under control.