Template Guide

[wycats]

Since Glimmer has a number of extensions to vanilla Handlebars (and people might not be familiar with Handlebars anyway) that overlap but are not identical to Ember, we need a templating guide focused on how to understand Glimmer templates.

Some notable examples of extension syntax:

• @-syntax (and the relationship to this.args in component classes)
• {{yield}}
• {{has-block}} (and lesser priority {{has-block-params}})
• inline if
• <angle-bracket> invocation
• {{action}}
• "contextual components"
• attributes in HTML

[wycats]

I'd like it if we were careful to use simple language in this guide rather than terminology like "closure action" and "contextual component" 😄

[locks]

Small note: we'll need to implement contextual components first. And inline if.

[jenweber]

I wrote this Glimmer syntax cheat sheet a while back. Might be a good start.