Hello. Why it is used "exercise in exercises" in ng-repeat? Why it isn't "exerciseS in exerciseS"? Term "exercise" isn't used anywhere. It is "exercises" evywhere, because it is "$scope.exercises". Can you explain me please? I am lost in "S"..
It is common to write the iterator variable as a singular object, and the iterable as a pluralized object.
for thing in things for child in children for part in parts for list_item in list message in messages exercise in exercises
Making sense, now?
So it is common or it wouldn't work if it would be written "things in things"?
They are one in the same. It's like looking in a milk jug for milk. It will always be found. If we are looking for
protein molecules in milk they will be abundant.
for marbles in marbles
All we see is a bag of marbles. Pseudo-code, follows:
for marble in marbles if marble.color === bluish: favorites.append(marble)
In the above, we are examining the individual marbles, one at a time, that make up the bag of marbles. This is much more practical, and discerning.