Reducing the number of function calls in JavaScript can help improve the performance of your code, especially in cases where functions are called frequently. Here are a few strategies for reducing the number of function calls in JavaScript:

1. Avoid nesting functions: Nested functions can increase the number of function calls, as each inner function must be called by the outer function. Instead of nesting functions, consider using a single function or breaking the logic into smaller, independent functions.

2. Use function arguments instead of accessing global variables: If you need to pass data to a function, consider using function arguments instead of accessing global variables. Accessing global variables can be slower than passing data as an argument, and it can also make your code less modular and more difficult to maintain.

3. Avoid using function calls as conditionals: Function calls can be slow, especially if the function performs a lot of work. Instead of using function calls as conditionals, consider using a simple comparison or Boolean expression.

4. Use memoization: Memoization is a technique that involves storing the results of expensive function calls in a cache. By using memoization, you can avoid calling the same function multiple times with the same input, which can improve the performance of your code.

5. Use function composition: Function composition is a technique that involves combining multiple functions into a single function. By using function composition, you can avoid calling multiple functions and instead use a single function that performs all the necessary operations.

Conclusion

By following these strategies, you can reduce the number of function calls in your JavaScript code and improve its performance. It's important to note that these techniques may not be applicable in all cases, and the best approach will depend on the specific needs of your application.