knockout.js

Knockout foreach generate html fields

由 我怕爱的太早我们不能终老 提交于 2021-01-29 08:55:03
问题 I want to display as many fields as user wants. Maybe you have idea how can I do this case using foreach loop in Knockout framework. For example numberOfFields is input field where user can enter how many fields he wants to display <input id="numberOfFields" type="text" data-bind="value: obj().numberOfFields() /> <div data-bind="foreach: new Array(obj().numberofCashFlows())"> <label for="quantity$index()">Flow number $index()</label> <input id="quantity$index()" type="text" data-bind="value:

Checkbox doesn't enable fields Knockout

由 谁说胖子不能爱 提交于 2021-01-29 06:10:40
问题 I'm trying to set enabled true for "SetOutputCurrentPPLowValue" & "SetOutputCurrentPPHighValue" when "SetAlarmValues" is checked. I have the following code, for this issue: The fields are disabled when the page is loaded but when the "SetAlarmValues" is checked, they stay disabled. I'm not sure why. Please help! <!-- ko if: $root.regData --> <div class="row"> <div class="col-md-2"> <label for="SetAlarmValues" class="control-label">@MSL.Core.Resource.Models.Well.SetAlarmValues:</label> <input

property 'isvalid' does not exist on type 'KnockoutObservable'

由 时间秒杀一切 提交于 2021-01-28 15:02:17
问题 I have just started switching from javascript to typescipt. I am using knockout for obvious advantages it has to offer. I need to define a knockout computed observable which is dependent on the value of another knockout observable. Return true if the observable is valid else return false. This is how I have structured the code - class anyClass { private address: KnockoutObservable<any> = ko.observable().extend({ required : true}); private canPrintAddresses : KnockoutComputed<boolean> = ko

property 'isvalid' does not exist on type 'KnockoutObservable'

由 点点圈 提交于 2021-01-28 15:01:26
问题 I have just started switching from javascript to typescipt. I am using knockout for obvious advantages it has to offer. I need to define a knockout computed observable which is dependent on the value of another knockout observable. Return true if the observable is valid else return false. This is how I have structured the code - class anyClass { private address: KnockoutObservable<any> = ko.observable().extend({ required : true}); private canPrintAddresses : KnockoutComputed<boolean> = ko

Knockout/Select2 Dropdownlist contains correct options, but now displays nothing as selected

由 房东的猫 提交于 2021-01-28 09:42:07
问题 So I have two dropdown lists that I'm using with knockout and select. When the availablePeople list returns all false (doesn't work properly), I am able to select and retain the person I chose. However, when the available people list works properly, I am not able to see the dropdown selection that I chose. To elaborate on the availablePeople List, if you select a person, that person can no longer be selected in future rows. HTML <div> <table id="tblPossessionChanges"> <thead> <tr> <th><a href

How to get Javascript's IMPORT EXPORT working. Do I need transpiler?

由 房东的猫 提交于 2021-01-27 21:50:42
问题 I am so confused about this. All I want to do is simply break up my javascript into modules, and include them in certain pages. Some pages may need my user-module.js , some pages may not. I have Googled, read the tutorials, and it's still not working for me. Here is a simple test case: 1. Include my script from my html <script src="../js/login-view-model.js"></script> Now, inside there... 2. TRY to include another module/js file // LoginViewModel // I NEED MY IMPORT HERE import { userService

Knockout foreach binding unordered list

由 北城余情 提交于 2021-01-27 13:34:52
问题 First off, Merry Christmas! Hopefully no one else is working on xmas day unless they're knockout experts and really feel the urge to help me out ;-) I'm using the fabulous jQuery Column Navigation Plugin to show data to my users in a multi column fashion. It worked fine in my static testing, but now implementing it into production code I've hit something that hopefully isn't too difficult to sort out. It requires a div inside a ul element to allow for scrolling when the list gets to big. The

Split viewmodel into multiple viewmodels in knockout.js

由 泪湿孤枕 提交于 2021-01-08 02:38:54
问题 In Knockout.js, when your ViewModel gets quite big, there are different ways to split into multiple ViewModels and it is always a good idea to have a number of smaller ViewModels instead of having one big one. I am using the following approach and not sure if there is any other better way of doing this. Note I am using require.js to define my ViewModels but I am not including that code in the example below for the sake of simplicity. In the following example let's say that I am working on a

France beat Croatia 4-2 in World Cup final

由 自作多情 提交于 2020-11-18 08:40:43
France won the World Cup for the second time by beating Croatia 4-2 in a tremendous final in Moscow 【题目】法国4-2赢得了克罗地亚勇夺世界冠军 【第一段】在莫斯科举办的世界杯决赛中，法国4-2大比分击败克罗地亚，第二次获得世界杯冠军。 💡 tremendous adj.巨大的，指比分拉锯巨大。 A breathtaking encounter featured the first World Cup final own goal, two hugely controversial refereeing decisions and a goalkeeping howler 世界杯决赛上的第一粒乌龙球，两次 💡 breathtaking adj.吃惊的。 encounter n.意外的遭遇 vt 偶然的遇到，碰到 feature 的 v, 有特色的， adj.被形成的 own goal 乌龙球 controversial adj,引起争议的，有争议的。 referee n.仲裁人，调解人。 vt.仲裁，裁判。 refer vt.设计，委托。 howler a stupid mistake 低级错误。 France's victory meant Didier Deschamps,Who

web前端Vue学习MVVM的优缺点

由 早过忘川 提交于 2020-10-01 06:54:08
　　学习web前端一定要学的移动端框架就是VUE，你真的学会VUE了吗，今天小编介绍下web前端Vue学习MVVM的优缺点 　　1你对MVVM的理解? 　　MVVM是什么?MVVM 模式，顾名思义即 Model-View-ViewModel 模式。它萌芽于2005年微软推出的基于 Windows 的用户界面框架 WPF ，前端最早的 MVVM 框架 knockout 在2010年发布。 　　Model 层: 对应数据层的域模型，它主要做域模型的同步。通过 Ajax/fetch 等 API 完成客户端和服务端业务 Model 的同步。在层间关系里，它主要用于抽象出 ViewModel 中视图的 Model。 　　View 层:作为视图模板存在，在 MVVM 里，整个 View 是一个动态模板。除了定义结构、布局外，它展示的是 ViewModel 层的数据和状态。View 层不负责处理状态，View 层做的是 数据绑定的声明、 指令的声明、 事件绑定的声明。 　　ViewModel 层:把 View 需要的层数据暴露，并对 View 层的 数据绑定声明、 指令声明、 事件绑定声明 负责，也就是处理 View 层的具体业务逻辑。ViewModel 底层会做好绑定属性的监听。当 ViewModel 中数据变化，View 层会得到更新;而当 View 中声明了数据的双向绑定(通常是表单元素)
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