小编sat*_*els的帖子

getFullName1和getFullName2之间的区别是什么？

视图模型:

var viewModel = {
    firstName: ko.observable("Vasya"),
    lastName: ko.observable("Petrov"),
    getFullName1: function() {
        return this.firstName() + " " + this.lastName();
    }
};

viewModel.getFullName2 = ko.dependentObservable(function() {
    return this.firstName() + " " + this.lastName();
}, viewModel);

// Activates knockout.js
ko.applyBindings(viewModel);

模板

<p>Full name 1: <span data-bind="text: getFullName1()">todo</span></p>
<p>Full name 2: <span data-bind="text: getFullName2()">todo</span></p>
<p>First name: <input data-bind="value: firstName"></p>