What are the best practices for function factories in programming?
Function factories are a design pattern that allows you to create functions dynamically. Best practices include keeping them simple, ensuring they are reusable, and avoiding side effects.
Can you give me an example of a function factory?
Sure! Here's a simple example: a function factory that creates increment functions. You can create a factory like this:
function createIncrementer(increment) {
return function(value) {
return value + increment;
};
}
const incrementByTwo = createIncrementer(2);
console.log(incrementByTwo(5)); // Outputs: 7
What should I avoid when using function factories?
Avoid creating function factories that are too complex or have too many responsibilities. Also, steer clear of using global state within your factories, as it can lead to unpredictable behavior.
How do function factories differ from regular functions?
Function factories return new functions based on the parameters you provide, while regular functions execute a specific task without creating new functions.
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