What Is a Front-End Developer?

    HTML, CSS, & JavaScript:

    A front-end developer architects and develops websites and applications using web technologies (i.e., , CSS, , and JavaScript), which run on the or act as compilation input for non-web platform environments (i.e., React Native).

    Typically, a person enters into the field of front-end development by learning to develop HTML, CSS, and JavaScript which commonly runs in but can also run in a headless browser, , or as compilation input for a native runtime environment. These four run times scenarios are explained below.

    Web Browsers (most common)

    A web browser is software used to retrieve, present, and traverse information on the WWW. Typically, browsers run on a desktop or laptop computer, tablet, or phone, but as of late a browser can be found on just about anything (i.e, on a fridge, in cars, etc.).

    The most common web browsers are (shown in order of ):

    Headless Browsers

    Headless browsers are a web browser without a graphical user interface that can be controlled from a command line interface programmatically for the purpose of web page automation (e.g., functional testing, scraping, unit testing, etc.). Think of headless browsers as a browser that you can run from the command line that can retrieve and traverse web pages.

    Webviews

    Webviews are used by a native OS, in a native application, to run web pages. Think of a like an iframe or a single tab from a web browser that is embedded in a native application running on a device (e.g., iOS, , windows).

    The most common solutions for development are:

    • Cordova (typically for native phone/tablet apps)
    • (typically used for desktop apps)
    • Electron (typically used for desktop apps)
    Native from Web Tech

    Eventually, what is learned from web browser development can be used by front-end developers to craft code for environments that are not fueled by a browser engine. As of late, development environments are being dreamed up that use web technologies (e.g., CSS and JavaScript), without web engines, to create native applications.

    Some examples of these environments are:

    NOTES: