backbone.js set model internal attributes hash directly

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抹茶落季
抹茶落季 2021-02-03 11:01

Using Backbone.js I know it\'s highly recommended to set a model\'s property using the set method, and NOT by directly modifying the attributes internal hash.

However, a

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  • 2021-02-03 11:13

    In the annotated source code mentioned by Brian Genisio you can read the following lines: "Handle both "key", value and {key: value} -style arguments.". So you can just use model.set(myProperty,"bar",options). Perhaps they've added this feature after the post of Brian Genisio.. i dunno.

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  • 2021-02-03 11:34

    Well, if you look at the annotated source code, you'll find that set does a lot.

    What if you extended Backbone.Model with a function that does it for you:

    Backbone.Model.prototype.setByName = function(key, value, options) { 
        var setter = {}; 
        setter[key] = value; 
        this.set(setter, options); 
    };
    

    Then, you can just do what you want directly on the model:

    var model = new Backbone.Model();
    model.setByName(myProperty, "bar");
    

    That feels like a better solution to me.

    Edit

    As @earl3s pointed out, this is no longer necessary in more recent versions of Backbone. Today, you can just call model.set(myProperty, "bar") and it does what you want.

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