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Apprendre Avoiding Race Conditions | Debugging and Best Practices for Asynchronous Code
Asynchronous JavaScript Explained

bookAvoiding Race Conditions

When working with asynchronous JavaScript, you often need to coordinate multiple operations that may complete in an unpredictable order. This can lead to race conditions, where the timing of asynchronous events causes your code to behave unpredictably or produce incorrect results. To avoid race conditions, you should always manage shared state carefully, ensure that asynchronous operations execute in the intended order, and use language features that help enforce predictable flow.

Start by identifying any points in your code where two or more asynchronous operations might read or write the same data. If you allow multiple asynchronous functions to update the same variable or resource without coordination, you risk one operation overwriting the changes of another, or reading stale data. Always use Promise combinators or async/await to explicitly control the order in which asynchronous tasks complete, especially when the result of one operation depends on another. Avoid updating shared state in multiple places unless you can guarantee the order of execution. When possible, encapsulate state within functions or objects, and avoid exposing it to outside modification during asynchronous work.

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Section 4. Chapitre 4

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When working with asynchronous JavaScript, you often need to coordinate multiple operations that may complete in an unpredictable order. This can lead to race conditions, where the timing of asynchronous events causes your code to behave unpredictably or produce incorrect results. To avoid race conditions, you should always manage shared state carefully, ensure that asynchronous operations execute in the intended order, and use language features that help enforce predictable flow.

Start by identifying any points in your code where two or more asynchronous operations might read or write the same data. If you allow multiple asynchronous functions to update the same variable or resource without coordination, you risk one operation overwriting the changes of another, or reading stale data. Always use Promise combinators or async/await to explicitly control the order in which asynchronous tasks complete, especially when the result of one operation depends on another. Avoid updating shared state in multiple places unless you can guarantee the order of execution. When possible, encapsulate state within functions or objects, and avoid exposing it to outside modification during asynchronous work.

script.js

script.js

index.html

index.html

copy
question mark

What is a race condition?

Select the correct answer

Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 4. Chapitre 4
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