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Hooks

What is it

Hooks, in a general programming context, are functions or programming constructs that allow you to add reusable logic or behavior to your code.

function someProcess(){ console.log("process"); useInterceptionHook(); console.log("process"); }

Intercepted function calls refer to the act of capturing and modifying the invocation of a function in a program.

It involves intercepting or "hooking" into the execution of a function to perform additional actions before or after the original function call is made.

  • This interception allows you to customize the behavior of the function or add additional functionality without directly modifying the original function's code.

Use Cases

Intercepting function calls can be useful in various scenarios, including:

  • Logging: Intercepting function calls can be used to log information about the function invocations. You can capture the function arguments, return values, and other relevant data to track the flow of execution or debug issues.
  • Profiling and Performance Monitoring: By intercepting function calls, you can measure the execution time of functions, track resource usage, or gather statistics for performance analysis and optimization purposes.
  • Security and Access Control: Intercepting function calls can be used to enforce security policies, access control rules, or perform validation checks before allowing the rest of the function to execute.
  • Caching and Memoization: Intercepting function calls allows you to implement caching or memoization strategies. By intercepting the function calls, you can check if the same input parameters have been used before and return a cached result instead of recomputing it.
  • Error Handling and Exception Tracking: Intercepting function calls can be used to catch and handle errors or exceptions that occur within a function. You can intercept the function calls to wrap them in try-catch blocks or send error reports to a monitoring system.
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