重置集合并用新模型填充數(shù)組或?qū)⑶蹇照麄€(gè)集合。
collection.reset(models,options)
<!DOCTYPE html> <head> <title>Collection Example</title> <script src="https://code.jquery.com/jquery-2.1.3.min.js" type="text/javascript"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js" type="text/javascript"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js" type="text/javascript"></script> </head> <body> <script type="text/javascript"> //The 'C_Name' is a model name and includes default value var C_Name = Backbone.Model.extend({ defaults: { country: "sachin" } }); //'PlayersCollection' is an instance of collection and model 'C_Name' is specified by using model property var PlayersCollection = Backbone.Collection.extend({ model: C_Name }); //The 'country1' and 'country2' are the instances of the model 'C_name' var country1 = new C_Name({country: "australia"}); var country2 = new C_Name({country: "england"}); //Add the model instances to the collection using 'mycollection' collection instance var mycollection = new PlayersCollection(); mycollection.add([country1,country2]); //The 'length' property defines length of the collection document.write('Number of added countries: ' + mycollection.length); document.write("<br>"); //Here, the reset() method resets the collection otherwise empties the collection mycollection.reset(); document.write('Number of countries after reset: ' + mycollection.length); </script> </body> </html>
讓我們進(jìn)行以下步驟來(lái)看看上面的代碼工作:
保存上述代碼在文件reset.html
在瀏覽器打開(kāi)這個(gè)HTML文件。