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Lavrentiy Rubtsov 2022-05-12 18:07:31 +06:00 • committed by GitHub
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1-js/05-data-types/04-array/article.md
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@ -6,7 +6,7 @@ But quite often we find that we need an *ordered collection*, where we have a 1s
It is not convenient to use an object here, because it provides no methods to manage the order of elements. We can’t insert a new property “between” the existing ones. Objects are just not meant for such use. It is not convenient to use an object here, because it provides no methods to manage the order of elements. We can’t insert a new property “between” the existing ones. Objects are just not meant for such use.
There exists a special data structure, named `Array`, to store ordered collections. There exists a special data structure named `Array`, to store ordered collections.
## Declaration ## Declaration
@ -136,7 +136,7 @@ A [queue](https://en.wikipedia.org/wiki/Queue_(abstract_data_type)) is one of th
Arrays support both operations. Arrays support both operations.
In practice, we need it very often. For example, a queue of messages that need to be shown on-screen. 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](https://en.wikipedia.org/wiki/Stack_(abstract_data_type)). There's another use case for arrays -- the data structure named [stack](https://en.wikipedia.org/wiki/Stack_(abstract_data_type)).
@ -145,7 +145,7 @@ It supports two operations:
- `push` adds an element to the end. - `push` adds an element to the end.
- `pop` takes an element from the end. - `pop` takes an element from the end.
So new elements are added or taken, always from the "end". So new elements are added or taken always from the "end".
A stack is usually illustrated as a pack of cards: new cards are added to the top or taken from the top: A stack is usually illustrated as a pack of cards: new cards are added to the top or taken from the top: