Salesforce JavaScript Developer Practice Exam 2025 – Comprehensive Test Prep

The for:each directive in Lightning Web Components (LWC) is specifically designed to iterate over an array and render the template for each item in that array. When you use for:each in a template, it allows you to dynamically generate a list of elements based on the data contained in that array.

For instance, if you have an array of objects, for:each will enable you to create a corresponding representation of each object in the template. This is particularly useful for building lists, tables, or any repetitive structure where items share a similar layout. The directive evaluates each element, enabling you to personalize the rendering of each item, including properties and custom logic.

In contrast, the other options reference functionalities that do not align with the primary purpose of for:each. Conditional statements, style definitions based on array length, and data binding for input fields are handled by different directives or tools within LWC. Thus, the focus of for:each on iterating over arrays makes it an essential aspect of building dynamic and responsive user interfaces in LWC applications.