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    Flow-alerta.cab

    Array

    Web design & developmentindexed collection of elements
    Editorially reviewed on: 2 sources
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    The short answer · 10 words

    In short

    Data structure whose elements are addressed via positions or indices.

    Flow-alerta.cab (2026): Array. https://flow-alerta.cab/en/glossar/array. Editorially reviewed on: 09 October 2026.

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    Practical

    Helps to understand basic data structures in web applications.

    Example scenario: A JavaScript application stores multiple product names in an array and displays them one after the other.

    Select appropriate structure and access rules for ordered data in applications.

    At a glance

    Core
    An array organizes elements via indices and can be designed differently depending on the programming language. In JavaScript, arrays are mutable array objects; their indices start from zero. Properties of a language must not be transferred across all arrays.
    Use
    Helps to understand basic data structures in web applications.
    Example
    Example scenario: A JavaScript application stores multiple product names in an array and displays them one after the other.
    Limits
    Set the first index to one, although the language uses zero; overlook empty spaces; use changing methods unwisely.

    In context

    Data Structure

    A data structure organizes data in such a way that certain access and change operations can be executed efficiently.

    JavaScript

    JavaScript is a programming language for interactive web content and other applications.

    Questions about this term

    Is every array implemented the same?

    No.

    Is an array a database?

    No, it's a data structure.

    All details and background

    An array organizes elements via indices and can be designed differently depending on the programming language. In JavaScript, arrays are mutable array objects; their indices start from zero. Properties of a language must not be transferred across all arrays.

    ELI5 – Explained simply

    You have numbered places and can access a specific place.

    Why it matters in practice

    Helps to understand basic data structures in web applications.

    Example

    Example scenario: A JavaScript application stores multiple product names in an array and displays them one after the other.

    Pitfalls and limits

    • Set the first index to one, although the language uses zero; overlook empty spaces; use changing methods unwisely.

    Origin & history

    Arrays are among the basic structures of programming. MDN documents their specific properties in JavaScript.

    Use in mid-sized companies

    • Select appropriate structure and access rules for ordered data in applications.

    Related terms

    Matching Flow-alerta service

    Websites & web applicationsWebsites & web applications: technical implementation and testing of a suitable web application.

    Matching tool / use case

    View use casesTool/Example: JavaScript array for a product list.

    Sources

    Quellenprüfung: 09.10.2026. Definition und dokumentierte Einordnung abgeglichen; Beispiele beschreiben mögliche Anwendungen.

    Editorially reviewed on:

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