Inside Glimmer: What Makes Ember's Rendering Engine Tick
summary
Ember rewrites its rendering engine into a low‑level set of micro‑libraries: Glimmer sits on top of a Handlebars lexer and the HTMLBars runtime, compiles templates to opcodes and JS, and uses cached DOM fragments plus render nodes with dirty flags to diff per‑value not per‑component. The same old app benchmarks (DBMonster) become dramatically faster, an each helper shrinks from ~800 lines to 17, and server rendering plus state serialization via FastBoot enables HTML rehydration without breaking backwards compatibility.
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chapters (5)
- 0:00Start
- 1:59WEB APPLICATION DEVELOPMENT MOVES FAST
- 11:24A low-level engine for DATA FLOW
- 15:03MUTATION TRACKING DIRTY CHECKING MANUAL NOTIFICATION
- 46:01SERVER-SIDE RENDERING
