显式设置带有knockout.js的自定义绑定处理程序内部的值绑定处理程序

ko.bindingHandlers.customBinding = {
    init: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
        // 初始化绑定处理程序
    },
    update: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
        // 更新绑定处理程序
    }
};

<div data-bind="customBinding: someValue"></div>

ko.bindingHandlers.customBinding = {
    init: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
        var value = ko.unwrap(valueAccessor()); // 获取值绑定处理程序的内部值
        // 设置值绑定处理程序的内部值
        value("Hello, World!");
    },
    update: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
        // 更新绑定处理程序
    }
};