- Variables, which are labeled containers for variable values.
- Operators, which perform mathematical operations on two values.
- Functions, which are blocks of JS code designed to accomplish specific tasks.
- Comments, which allow developers to add notes to their code.
- Conditionals, which determine whether or not lines of code can be executed.
- Events, which determine what will happen if a specific event occurs.
To find out, you’ll need to distinguish between front- and back-end web development.
For instance, JS can be used to display a certain message whenever users click a button. It can even display different messages depending on the number of times a user has clicked. In the following example, the highlighted JS snippet is instructing the page to display a unique message whenever a user clicks more than five times:
In short, back-end development is the type of web development used to create and maintain the parts of a website that users don’t come in contact with. For instance, a site’s architecture, scripting and databases all fall under the umbrella of back-end development.
- In-person classes: If you learn best in a face-to-face environment, you may be able to do so at a nearby trade school, community college or computer training school.
Some of the most useful and respected JS certifications include:
- Front-end developer: Create, maintain and improve the user-facing elements of a website.
- Back-end developer: Create, maintain and improve the non-user-facing elements of a website, such as the data strategy and security measures.
- Mobile app developer: Build, test and program applications intended for use on mobile devices such as smartphones and tablets.
- Website designer: Design and optimize the visual elements of a website’s user interface.
So whether you’re looking to pick up a new hobby or work toward becoming a web developer by trade, JS is one language worth learning.
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