Instead of
def do_something(a, b, c):
return res_fn(
fn(a, b),
fn(b),
c
)
I do:
def do_something(a, b, c):
inter_1 = fn(a, b)
inter_2 = fn(b)
result = res_fn(inter_1, inter_2, c)
return result
The first version is much shorter, and when formatted properly, equally readable.
But the reason I prefer the second approach is because all intermediate steps are saved to local variables.
Exception tracking tools like Sentry, and even Django's error page that pops up when DEBUG=True is set, capture the local context. On top of that, if you ever have to step through the function with a debugger, you can see the exact return value before stepping out from the function. This is the reason why I even save the final result in a local variable, just before returning it.
At the performance cost of couple of extra variable assignments, and couple of extra lines of code, this makes debugging much easier.
Das obige ist der detaillierte Inhalt vonWarum ich lokalen Variablen immer Zwischenwerte zuweise, anstatt sie direkt an Funktionsaufrufe zu übergeben. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!
