Class: kb

Variables Summary

VERSION =

'1.2.3'

Knockback library semantic version

TYPE_UNKNOWN =

0

Stored value type is not known like null/undefined (could be observed as a Model or a Collection or a simple type)

TYPE_SIMPLE =

1

Stored value type is simple like a String or Number -> observable type: ko.observable

TYPE_ARRAY =

2

Stored value type is an Array -> observable type: ko.observableArray

TYPE_MODEL =

3

Stored value type is a Model -> observable type: ViewModel

TYPE_COLLECTION =

4

Stored value type is a Collection -> observable type: kb.CollectionObservable

Class Method Summary

• . (void) wasReleased(obj) Checks if an object has been released.
• . (void) isReleaseable(obj, depth = 0) Checks if an object can be released.
• . (void) release(obj) Releases any type of view model or observable or items in an array using the conventions of release(), destroy(), dispose().
• . (void) releaseKeys(obj) Releases and clears all of the keys on an object using the conventions of release(), destroy(), dispose() without releasing the top level object itself.
• . (void) releaseOnNodeRemove(view_model, node) Binds a callback to the node that releases the view model when the node is removed using ko.removeNode.
• . (void) renderTemplate(template, view_model, options = {}) Renders a template and binds a callback to the node that releases the view model when the node is removed using ko.removeNode.
• . (void) applyBindings(view_model, node) Applies bindings and binds a callback to the node that releases the view model when the node is removed using ko.removeNode.
• . (void) getValue(model, key, args)
• . (void) setValue(model, key, value)

Class Method Details

var view_model = kb.viewModel(model);
kb.release(view_model); view_model = null;

var todos = kb.collectionObservable(collection);
kb.release(todos); todos = null;

ko.utils.domNodeDisposal.addDisposeCallback(node, function() { kb.release(view_model)} );

var el = $('<div data-bind="name: name"></div>')[0];
var view_model = kb.viewModel(new Backbone.Model({name: 'Bob'}));
ko.applyBindings(view_model, el);
kb.releaseOnNodeRemove(view_model, el);
...
ko.removeNode(el); // removes el from the DOM and calls kb.release(view_model)

var el = kb.renderTemplate('my_template', kb.viewModel(new Backbone.Model({name: 'Bob'})));
...
ko.removeNode(el); // removes el from the DOM and calls kb.release(view_model)

var el = $('<div data-bind="name: name"></div>')[0];
kb.applyBindings(kb.viewModel(new Backbone.Model({name: 'Bob'})), el);
...
ko.removeNode(el); // removes el from the DOM and calls kb.release(view_model)

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