Uncaught Referenceerror

In this article, you will figure out how to fix “uncaught reference error: require isn’t characterized” in JavaScript which happens when the necessary variable isn’t determined.

Programming in HTML and CSS is a fascinating undertaking, however writing in JavaScript could appear to be a bit of a breeze from the get-go — that is, until a blunder shows up all of a sudden, and you have no clue about what the following stage ought to be.

The JavaScript “require isn’t characterized” issue is perhaps of the most widely recognized botch that we as developers experience, and there are different variables that could make this blunder happen.

This is most frequently the consequence of a JavaScript that can’t as expected deal with a reference to the required () capability. This component is just accessible in node.js conditions naturally.

This issue can likewise be brought about by the accompanying:

  • The utilization of the required () capability in a program
  • Utilizing the require() capability in a Node.js project with the package.json document’s ‘type’ set to’module’
  • Execution of the require() technique in Nod.js for documents with a ‘.mjs’ expansion.
  • Execution of the require() technique in Nod.js for documents with a ‘.mjs’ expansion.
  • On the off chance that your request is, “How might we fix this blunder?” So you can definitely relax, we have this! In both the program and the server, this blunder can happen. What’s more, we have deals with serious consequences regarding both of your circumstances. Thusly, we should move began with it immediately!

Fixing JavaScript “require isn’t characterized” in a Browser

It’s impractical to utilize the required () capability in a program since it’s just upheld by the hub. Product and import linguistic structure from the ES6 module system will be utilized to fix this issue. No one but programs can utilize this strategy, and it fills in as an option to the required () technique.

The HTML code for the ES6 import/trade sentence structure is displayed beneath:

This punctuation can be utilized in your.js documents whenever it has been imported. Sending out a JavaScript capability and a variable is the following stage.

Import another.js record now to utilize the language structure in this document:

Presently you’re all set! Rather than calling the require() strategy,’ you ought to involve this grammar in the program.

Fixing “require isn’t characterized” on a Server

It’s conceivable that the require() capability isn’t characterized on your server, which would make sense of this issue. This issue can be fixed by renaming any records with a “.mjs” expansion to “.js” and eliminating the “type” esteem in the event that it is set to “module” in your “package. Json” document.

The Json code is as per the following:

Assuming you favor the ES6 module punctuation, you may likewise utilize the import and commodity watchwords. To move modules around, you should simply use the import and product watchwords.

Here is a model

The block of code that you traded can now be brought into one more record and utilized as you see fit.

Coming up next is an illustration of this:


You ought to have no further issues. You essentially have to distinguish where the issue is happening and afterward code it properly. You totally should not consolidate the utilization of the require() technique and the ES6 module in any capacity. This is a fundamental point that you should have at the top of the priority list consistently. You are not allowed to utilize more than each in turn!