![]() This can look stupid but this is very volatile in JS.ĭon't worry if you are still confused with the this thing, I have dealing with it for long and still not completely cofindent. Syntax: Collection.Fetch ( options ) Parameters: options: This parameter is used to specify the SUCCESS or ERROR callbacks. Assume index.js is the compiled output of index.ts ->. The Backbone.JS Fetch () collection method extracts the data from the model in a collection. in one case or this.remove in the other) are gonna interpretate this as a reference to the actual object. This type is the backbone for DOM manipulation with TypeScript. What all this is doing is assuring that the calls to the listed methods ( render, remove. Everything works perfectly, but I'm trying to figure out how to remove an item from the collection (note: I'm new to Backbone). And my suggestion fixed it because as I say both approachs do the same. The because is not working the bindAll in the model.remove is because you forgot to add it to the _.bindAll(this, 'render') line, look in your code. So maybe you can use the one or the other. looks like bindAll and the third paramater of the bind command do exactly the same. ![]() I know you have tried to solve this with the bindAll, but bindAll is wrapping every call to the listed methods with the context of the actual object, but this can't do anything if you are calling the same method on other object :). Try to change this: ('remove', this.remove) įor this: ('remove', this.remove, this) I think you have a problem with the context in every event bind definition. What am I doing wrong? How do I remove the element from the DOM when it is removed from the collection? If I delete the remove function from the RosterEntry model I get this error: TypeError: this.$el is undefined If I add this method with nothing in it but a console log, it the remove method on both the Roster and RosterEntry views is called – although I'm not sure why but they are out of order! Strangely, if I ommit the remove() function from the Roster View, all the entries in the roster are removed. My problem is that collection.remove(5) removes from the in-memory collection, but does nothing to update the DOM. My backbone view for the Roster collection and individual rosterEntry are as follows: = ()Īnd the new rosterEntry is added to the Roster. This can look stupid but this is very volatile in JS.ĭon't worry if you are still confused with the this thing, I have dealing with it for long and still not completely cofindent.I'm using backbone.js to implement a buddy list aka Roster. It calls stopListening to remove any bound events that the view has listenTo. Syntax collection.remove(models,options) Parameters. in one case or this.remove in the other) are gonna interpretate this as a reference to the actual object. The Backbone.js remove method is used to remove the view from the DOM. It is used to remove a model or array of models from the collection. Join For Free Backbone.js is a JavaScript library that provides models with key-value. What all this is doing is assuring that the calls to the listed methods ( render, remove. Comment Save Tweet Share 12.61K Views Join the DZone community and get the full member experience. So maybe you can use the one or the other. Visit my website: backbone.js tutorial explains how add and remove elements from the backbone.js Collection object.If you have any qu. ![]() If I add this method with nothing in it but a console log, it the remove method on both the Roster and RosterEntry views is called - although I'm not sure why but they are out of order! ![]() I'm using backbone.js to implement a buddy list aka Roster. ![]()
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