II. One-trick-pony variables
Don’t ride it just once
Programming often requires you to store data in memory during code execution. This programmatic memory storage vehicle is called variable which also has a type defined. For example, variables can be string, integer, boolean types, plus tons more.
var foo = "foo"; var message = "My message sentence"; var age = 35; var isActive = true; var temperature = 36.6;
Using variables the right way is a fine balance, which you as programmer, need to strike between readable code and memory utilisation.
Let’s consider this code below which in isolation doesn’t look too bad, right?
var patient = new Patient(); var nurse = new Nurse(); // some additional code left out for brevity var patientMorningTemperature = patient.Temperature; nurse.RecordPatientTemperature(patientMorningTemperature);
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