run it locally

Definition

Running it locally refers to the process of executing software or applications on a personal computer or local server rather than on a remote server or cloud environment. This approach allows developers to test and debug their code in a controlled setting, using their own machine's resources. It typically involves setting up the necessary environment, including dependencies and configurations, to mimic the production environment as closely as possible. By running applications locally, developers can identify issues early in the development cycle.

Why it matters

Running applications locally is crucial for several reasons. Firstly, it enables developers to quickly test changes without the delays associated with deploying to a remote server. This immediate feedback loop allows for faster iteration and problem-solving. Additionally, local environments help ensure that the application behaves as expected before moving to production, reducing the risk of errors in live environments. It also provides a safe space to experiment with new features or technologies without affecting the live application.

Example in VCA

In Vibe Code Academy (VCA), students are often encouraged to run their projects locally to gain hands-on experience. For instance, when working on a web application, students would set up a local server using tools like Node.js. They would then run their code on localhost, allowing them to see real-time changes in their browser as they develop. This practice not only solidifies their understanding of web development concepts but also prepares them for real-world scenarios where local development is a standard practice.

Another Real World Example

Consider a software development team working on a new feature for an existing application. Before deploying the feature to the production environment, the team runs it locally on their machines. They set up a local instance of the application with the necessary databases and configurations. By doing this, they can thoroughly test the new feature, identify bugs, and make improvements. This local testing phase is essential to ensure that the feature works seamlessly when it is eventually deployed to users.

Common mistakes

Many developers forget to install all necessary dependencies when setting up their local environment, leading to errors when running the application.
Some may not configure their local settings to match the production environment, resulting in discrepancies in behaviour.
Developers often overlook the importance of testing on different browsers or devices locally, which can lead to compatibility issues later.
A common mistake is neglecting to clean up local databases or files after testing, which can cause confusion in future development.
Lastly, some may skip the step of version control when running code locally, making it difficult to track changes or revert to previous versions.

Related terms

<a href="/glossary/local" data-glossary="local" class="glossary-term">local</a>
<a href="/glossary/localhost" data-glossary="localhost" class="glossary-term">localhost</a>
<a href="/glossary/environment" data-glossary="environment" class="glossary-term">environment</a>
<a href="/glossary/dependencies" data-glossary="dependencies" class="glossary-term">dependencies</a>
<a href="/glossary/deploy" data-glossary="deploy" class="glossary-term">deploy</a>
<a href="/glossary/version-control" data-glossary="version-control" class="glossary-term">version-control</a>