We earn commission when you buy through affiliate links.

This does not influence our reviews or recommendations.Learn more.

JavaScript remains one of the most-used programming languages due to its versatility.

1-3

To run JavaScript outside a net net app environment, developers must install Node.js, a cross-platform run-time environment.

The JavaScript heap out of memory error is common when running a JavaScript Node.js project.

Luckily, the error is fixable, irrespective of your operating system.

2-2

Step 2: punch theEnvironment Variableson the bottom left part of the dialogue box.

Step 3: ClickNewon eitherUser variablesorSystem variables.

The first option applies the changes to the current user account.

3-1

However, the second option applies the changes to the entire system.

In this step, the4096figure will allocate 4GB virtual memory to Node.js.

you’re free to allocate more such as 8GB, by setting the value as max-old-space-size=8192.

4-1

Step 5: Clickok,applyand finally,okto save the changes.

you might also use the Windows PowerShell terminal to solve the error.

If the error still persists, you might increase the memory size by doubling.

image-213

However, you might allocate virtual memory to solve heap out of memory error as you install JavaScript packages.

You must specify memory size in MBs.

Luckily, you might also have measures to prevent this error from occurring as you run JavaScript code.

You may find that your app always crashes when you have a go at import the data.

The-l flagspecifies that the file should be split based on the number of lines of code.

you might combine Node.js inbuilt memory and the ChromeDevTools to achieve this.

The two can detect issues in your code and fix them.

it’s possible for you to also check memory usage on your Node.js app through theprocess.memoryUsage()method.

If such objects are not garbage collected, there will be a build-up of memory usage over time.

you’re able to have one master process, and others are grouped as workers.

Node.js can run on RAM as low as 512MB.

However, your app will demand more RAM as it grows.

On the other hand, increasing the number of CPUs can also improve memory allocation.

FAQs

This error can be due to several reasons;1.

Presence of many objects in a project4.

Presence of large data structures

Yes.

you might solve the error through;1.

Allocating more virtual memory to Node.js2.

Upgrading your hardware

React is one of the most popular JavaScript libraries.

Luckily, you dont have to worry, as the heap out of memory error is fixable.

Next, You may also read how to avoid some commonJavaScript Errors.