JS:
result = arr.reduce((a, [wentOn, wentOff]) => { return a + wentOn - wentOff; });
Nice one, although you're missing the second argument to reduce which specifies the initial value for a.
reduce
a
According to the MDN Web Docs, that argument is optional.
Right :)
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JS:
Nice one, although you're missing the second argument to
reduce
which specifies the initial value fora
.According to the MDN Web Docs, that argument is optional.
Right :)