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As a JavaScript developer, understanding the order in which your modules are loaded and executed is crucial for writing efficient and reliable code.
In this article, we’ll dive deep into the intricacies of module loading and execution, equipping you with the knowledge to take control of your application’s flow.
The Basics of Module Loading
In modern JavaScript, we often use modules to organize our code and promote reusability. These modules can be loaded using various techniques, such as the import
statement or the require()
function. The order in which these modules are loaded can have a significant impact on your application's behavior.
Synchronous Module Loading
When you use the import
statement, the modules are loaded and executed synchronously. This means that the JavaScript engine will load and execute each module in the order they are imported, before moving on to the next line of code.
This can be useful when you have a clear dependency tree and need to ensure that certain modules are available before others can be used.