Backbone.js View的特殊選項有什麼特別之處？

Question

據backbone.js doc爲View：

有跡象表明，如果獲得通過，將附着 直接到視圖幾個特殊選項：model，collection，el，id，className，tagName 和attributes。

我明白el，id & className用於包裝無論在render()，但

如何特殊處於View對象model和collection？它們是否被View方法使用？

謝謝。

Answer 1

不，查看方法不使用此選項。 model和collection將成爲View對象的屬性。 從源代碼引用：

// List of view options to be merged as properties. 
var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName']; 

// Set up all inheritable **Backbone.View** properties and methods. 
_.extend(View.prototype, Events, { 

    ... 
    // Performs the initial configuration of a View with a set of options. 
    // Keys with special meaning *(model, collection, id, className)*, are 
    // attached directly to the view. 
    _configure: function(options) { 
    if (this.options) options = _.extend({}, this.options, options); 
    for (var i = 0, l = viewOptions.length; i < l; i++) { 
     var attr = viewOptions[i]; 
     if (options[attr]) this[attr] = options[attr]; 
    } 
    this.options = options; 
    }, 
    ... 

};