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Frameworks & web · #handlebars
Why triple-stash raw output risks XSS and how SafeString helpers centralize sanitization in Handlebars 4.x templates.
A practical architecture note on using Handlebars {{#each}} for list rendering, covering context scoping, empty-state handling with {{else}}, explicit variable naming, and the boundaries between template and application logic.
Learn how Handlebars #if and #each block helpers reduce duplicated HTML, simplify conditional UI and list rendering, and improve maintainability with a concrete example.
Step‑by‑step guide to diagnose and fix Handlebars 'Helper not found' errors, with checks for registration timing, name spelling, environment, and version‑specific APIs.
Custom Handlebars helpers keep templates declarative, but escaping rules and SafeString trip up most first attempts. Here's how to register helpers, build block helpers, and know when you've gone too far.
Template-only components in Ember Octane let a single .hbs file serve as a complete component — no empty class, no boilerplate. Here's how they work, a worked badge example, and where to draw the line.
Learn how to design, test, and guard Handlebars block helpers for conditional rendering, ensuring safe output, minimal complexity, and clear operational checks.
Push formatting, conditionals, and data transformation into Handlebars helpers. Templates stay declarative; helpers become testable, reusable JavaScript. Covers inline vs block helpers, local registration, async pitfalls, SafeString safety, and precompilation.
Handlebars rendering bugs cluster into three symptoms: visible entities, unescaped markup, and silent blanks. This guide maps each symptom to its cause and gives ordered checks with concrete tests.
javascript