Angular ContentChild

Angular View vs Content: Understanding Signal Queries

February 20, 2025

The difference between "view" and "content" in Angular trips up many developers, leading to queries that don't work as expected. Understanding this distinction is crucial for working with signal queries like viewChild() and contentChild(). This tutorial explains the fundamental difference: "view" refers to a component's own template, while "content" refers to projected content from parent components. You'll learn when to use each query type and how to avoid common mistakes.

Angular Angular Components Angular ContentChild

Angular Signal Queries: Replace @ContentChild with contentChild() (v19+)

November 22, 2024

Content projection in Angular requires querying projected content, but the old @ContentChild and @ContentChildren decorators have limitations: they're not reactive, require lifecycle hooks, and don't integrate well with signals. The new contentChild() and contentChildren() signal queries solve these problems by providing automatic reactivity, better type safety, and seamless signal integration. This tutorial shows you how to migrate from decorator-based content queries to the modern signal query API.