What's the difference between table.insert(t, i) and t[#t+1] = i?

Question

In Lua, there seem to be two ways of appending an element to an array:

table.insert(t, i)

and

t[#t+1] = i

Whi

Answer 1

insert can insert arbitrarily (as its name states), it only defaults to #t + 1, where as t[#t + 1] = i will always append to the (end of the) table. see section 5.5 in the lua manual.