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JavaScript Express Basics Getting Started with Express Creating a Server in Express

Posted by Ula Troc
Ula Troc
1,881 Points

Why are we saving require('express') and express(); in variables?

I was just wondering, what if we didn't save the express module in a variable. How would that affect the development?

What is the reason for saving it under const express and const app

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

The variables just give you references you can use to access the features of the module. "express" is needed so you can call the module and assign "app". And "app" gives you access to the features, such as the "listen" function:

app.listen(3000);  // example of using variable/constant to access module feature