Array resize with push?

The documentation day that you can mimic stacks and queues lifo & fifo data structures by using a 1d array and using push and pop, but the documentation also states that array do not dynamically resize.. Does that behave differently with push vs insert?

The resize comment is only for indexing - you can not index outside of the arrays size and expect it to dynamically resize to make that index valid - it won't. The push/insert... commands do dynamically change the array size, at your command.