How do you create a function pipeline in JavaScript?
Store functions in an array and reduce over them: pipeline.reduce((acc, fn) => fn(acc), initialValue). Each function takes the accumulated value and returns the next. This is functional composition.
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More FAQs in Functions as Values: Storing in Objects and Arrays in JavaScript
Yes. Functions in objects are methods. You can store different operations as properties (strategy pattern) or map keys to functions (dispatch table). This is cleaner than switch statements and easy to extend.
Yes. An array of functions can be reduced into a pipeline (functional composition) or used as middleware (each function calls next to continue). This is a powerful pattern for processing data in stages.
An object that maps keys to functions. For example, { '+': (a, b) => a + b, '-': (a, b) => a - b }. You look up the function by key and call it. This is cleaner and more extensible than a switch statement.
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