Interpose.js

Interpose.js: Intercept & Modify Function Calls

A lightweight JavaScript library for aspect-oriented programming, allowing you to intercept and modify function calls with ease.

What is Interpose.js?

Interpose.js is a lightweight JavaScript library that enables aspect-oriented programming techniques. It allows you to intercept and modify function calls in JavaScript code through an easy-to-use API.

With Interpose.js, you define interception rules that get triggered when certain functions are called. In the interception handler, you can modify the function arguments, the return value, and execute other logic before, after or around the original function call.

Some examples of what you can do with Interpose.js:

• Add logging and metrics to functions
• Validate function arguments
• Mock functions for testing
• Add caching to functions to avoid repeated executions
• Error handling and retry logic around functions that fail

The syntax of Interpose.js is designed to be simple and unintrusive. You don't have to make changes to the target functions you want to intercept. Just set up a rule to match the functions and Interpose.js handles the interception transparently.

Overall, Interpose.js makes it easy to write reusable cross-cutting logic that can work across many functions in your JavaScript codebase. It's great for handling common tasks like logging, validation, caching, error handling, and more.

Interpose.js Features

Official Links