{ $description "Similar to " { $link reduce } " but works on models, applying a quotation to the previous and new values at each update" } ;
HELP:switch-models
{ $values { "model1" model } { "model2" model } { "model'" model } }
{ $description "Creates a model that starts with the behavior of model2 and switches to the behavior of model1 on its update" } ;
HELP:<mapped>
{ $values { "model" model } { "quot""applied to model's value on updates" } { "model" model } }
{ $description "An expanded version of " { $link <arrow> } ". Use " { $link fmap } " instead." } ;
HELP:when-model
{ $values { "model" model } { "quot""called on the model if the quot yields true" } { "cond""a quotation called on the model's value, yielding a boolean value" } }
{ $description "Calls quot when model updates if its value meets the condition set in cond" } ;
HELP:with-self
{ $values { "quot""quotation that recieves its own return value" } { "model" model } }
{ $description "Fixed points for models: the quot reacts to the same model to gives" } ;
HELP:#1
{ $values { "model" model } { "model'" model } }
{ $description "Moves a model to the top of its dependencies' connections, thus being notified before the others" } ;
ARTICLE: "models.combinators""Extending models"
"The " { $vocab-link "models.combinators" } " library expands models to have discrete start and end times. "
"Also, it provides methods of manipulating and combining models, expecially useful when programming user interfaces: "
