Mnemocoding

Methods pop/push, shift/unshift

A queue is one of the most common uses of an array. In computer science, this means an ordered collection of elements which supports two operations:

push appends an element to the end.
shift get an element from the beginning, advancing the queue, so that the 2nd element becomes the 1st.

In practice we need it very often. For example, a queue of messages that need to be shown on-screen.There’s another use case for arrays – the data structure named stack. It supports two operations:

push adds an element to the end.
pop takes an element from the end.

Looking the picture we can make anchor to memorize:

on the left POP and SHIFT that take from array elements,
on the right PUSH and UNSHIFT that add elements.

Both methods pUSH and UnSHift have three common letters .

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Alexander

Mnemonics helps us in sophisticated matters associated with something more accessible or meaningful.

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Alexander