Is there a guideline for when to use curly vs. square braces, when the
effect would be the same?
For example PRIMER.md uses curly braces for text content, but it's just a
one-way binding:
<span>{{first}}</span>
Computed bindings are another example. PRIMER.md uses curly braces, which
seems confusing because it's not really two-way binding:
<x-child some-property="{{getValue(otherThing)}}">
Finally in one-way downward binding (notify: true is not set on a
property), using curly braces won't result in the host property being
updated.
Are there any performance reasons to use one or the other? Or suggested
style or forward-compatibility reasons?
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