Comments (2)
Actually, the workaround that I suggested (a "dummy" derived property), doesn't work because derived properties behave lazily for initial data (though they are updated non-lazily on change events that have not been silenced). I don't see convenient workarounds then.
from ampersand-state.
This is the best workaround I could come up with:
initialize() {
this.listenTo(this, 'change:myDependency', _.throttle(() =>
this.expensiveProperty = this._calculateExpensiveProperty(), 1000));
},
set(...args) {
Model.prototype.set.apply(this, args);
const options = args[args.length - 1];
if (options.initial) {
this.set({ expensiveProperty: this._calculateExpensiveProperty() },
{ silent: true });
}
return this;
},
from ampersand-state.
Related Issues (20)
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from ampersand-state.