如何在淘汰赛中创建可计算的可观察数组 [英] How to create a computed observable array in Knockout
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问题描述
我想知道如何创建一个可计算的可观察数组.
I would like to know how to create a computed observable array.
在我的视图模型中,我有2个可观察数组,我想有一个将两个数组组合在一起的计算可观察数组.
In my view model, I have 2 observable arrays, and I would like to have a computed observable array that is simply both arrays combined.
function ViewModel() {
var self = this;
self.listA= ko.observableArray([]);
self.listB = ko.observableArray([]);
self.masterList= //combine both list A and B
推荐答案
这将合并两个数组并返回合并后的列表.但是,它不是一个可计算的可观察数组(甚至不知道这是否可能),而是一个规则的可计算的可观察数组.
This will combine the two arrays and return the combined list. However, it is not a computed observable array (don't know if that is even possible), but a regular computed observable.
self.masterList = ko.computed(function() {
return this.listA().concat(this.listB());
}, this);
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