Why is \'require is not defined\' error occurring when using Javascript require() function?

Javascript require() function causing ReferenceError: require is not defined

In the realm of web scraping, Javascript developers often encounter the need to utilize external libraries for tasks, such as data extraction from the Google Play store. Libraries like Request, Cheerios, and QueryString provide valuable functions for scraping purposes. However, when attempting to employ these libraries using the "require" function, an error may arise: "ReferenceError: require is not defined."

Clarification

Javascript, unlike other programming languages, does not natively support the "require" function for module loading. This error suggests that the code is expecting a module loader, such as RequireJS, to be present in the environment for loading and managing external modules.

Solution

To resolve this issue, one must implement a module loader like RequireJS into the project. RequireJS is a popular Javascript file and module loader optimized for in-browser use. Its integration enhances code performance and organization.

Steps to Integrate RequireJS

1. Include the RequireJS script in the project: https://requirejs.org/docs/release/2.3.5/minified/require.js
2. Refer to the RequireJS documentation for its API: http://requirejs.org/docs/api.html

Browser Compatibility

RequireJS supports various browsers, including:

• IE 6
• Firefox 2
• Safari 3.2
• Chrome 3
• Opera 10

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