const dateList = []; function recordDate(date) { dateList.push(date); } function displayDates() { console.log(dateList); }
The problem with this code piece are recordDate and displayDates have outer dependency: dateList. Without that variable these two function is useless.
100%. Much better to use pure functions.
Or provide the dependency as a parameter even if it contains side effects you have overall control. Following the Inversion of Control principle.
You would export the functions from the module and keep the variable private. It's not the point of the example.
I absolutely agree. And it's another proof of the fact that learning never stops 🚀
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The problem with this code piece are recordDate and displayDates have outer dependency: dateList. Without that variable these two function is useless.
100%. Much better to use pure functions.
Or provide the dependency as a parameter even if it contains side effects you have overall control. Following the Inversion of Control principle.
You would export the functions from the module and keep the variable private. It's not the point of the example.
I absolutely agree. And it's another proof of the fact that learning never stops 🚀