Introducing the @let Syntax in Angular Templates

Angular developers rejoice! A new feature, @let, is transforming how we manage variables in Angular templates. By introducing a streamlined way to define and reuse variables, the @let syntax addresses one of the community’s most-requested improvements.

This addition makes templates more concise, improves readability, and enhances the overall developer experience. Let’s dive into how @let works and why it’s a game-changer.

The Problem: Reusing Expressions in Templates

Angular templates have always supported complex JavaScript expressions. However, there hasn’t been an easy way to store the result of an expression for reuse within the same template. This limitation forced developers to rely on workarounds such as directives, which can feel cumbersome and less intuitive.

The Solution: The @let Syntax

The new @let syntax allows you to declare a variable and reuse it throughout your template effortlessly. Here’s the basic structure:

@let variableName = expression;  

This declaration creates a variable that you can reference elsewhere in the template using Angular’s standard syntax.

Example Usage