blocks|key|1445593|text|我在这里有一个web组件的例子，https://github.com/brianlmerritt/knockout-babel-browserify-gulp|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1445594|具有组件的典型主html：|1445595|++++<div+class="row">
++++++++<div+class="panel+panel-primary">
++++++++++++<div+class="panel-heading">
++++++++++++++++<h2>Three+Component+View+Model+Binding+Test</h2>
++++++++++++</div>
++++++++++++<div+class="panel-body">
++++++++++++++++
++++++++++++++++
++++++++++++++++<div+class="col-md-4">
++++++++++++++++++++<component-one></component-one>
++++++++++++++++</div>
++++++++++++++++<div+class="col-md-4">
++++++++++++++++++++<component-two></component-two>
++++++++++++++++</div>
++++++++++++++++<div+class="col-md-4">
++++++++++++++++++++<component-three></component-three>
++++++++++++++++</div>
++++++++++++++++

++++++++++++++++<p>Note:+if+component+one+did+not+load+above,+then+check+your+browser+console+for+errors</p>
++++++++++++</div>|code-block|syntax|javascript|1445596|一个典型的组件--注意它是用ES2015+()编写的|1445597|const+ko+=+require('knockout')
++++++++,+CentralData+=+require('../../service-providers/central-data')
++++++++,+CentralState+=+require('../../service-providers/central-state')
++++++++,+template+=+require('./template.html');

++++const+viewModel+=+function+(data)+{

++++++++//Make+service+providers+accessible+to+data-bind+and+templates
++++++++this.CentralData+=+CentralData;
++++++++this.CentralState+=+CentralState;

++++++++this.componentName+=+'Component+One';
++++++++this.foo+=+ko.observable(`${this.componentName}+Foo`);
++++++++this.bar+=+ko.observableArray(this.componentName.split('+'));
++++++++this.barValue+=+ko.observable("");
++++++++this.bar.push('bar');
++++++++this.addToBar+=+(stuffForBar)+=>+{
++++++++++++if(this.barValue().length+>=+1)+{
++++++++++++++++this.bar.push(this.barValue());
++++++++++++++++CentralData.pushMoreData({firstName:+this.componentName,secondName:this.barValue()});
++++++++++++}
++++++++};
++++++++this.CentralState.signIn(this.componentName);
++++++++if+(CentralData.dataWeRetrieved().length+<+10)+{
++++++++++++var+dataToPush+=+{firstName+:+this.componentName,+secondName+:+'Foo-Bar'};
++++++++++++CentralData.pushMoreData(dataToPush);
++++++++}
++++};
++++console.info('Component+One+Running');
++++module.exports+=+{
++++++++name:+'component-one',
++++++++viewModel:+viewModel,
++++++++template:+template
++++};|1445598|template.html：|1445599|++++<div>
++++++++<h1+data-bind="text:+componentName"></h1>
++++++++<p>Foo+is+currently:+<span+data-bind="text:+foo"></span></p>
++++++++<p>Bar+is+an+array.+It's+values+currently+are:</p>
++++++++<ul+data-bind="foreach:+bar">
++++++++++++<li+data-bind="text:+$data"></li>
++++++++</ul>
++++++++<form+data-bind="submit:+addToBar">
++++++++++++<input+type="text"
+++++++++++++++++++name="bar"
+++++++++++++++++++placeholder="Be+witty!"
+++++++++++++++++++data-bind="attr:+{id+:+componentName},+value+:+barValue"+/>
++++++++++++<button+type="submit">Add+A+Bar</button>
++++++++</form>
++++++++<h2>Central+State</h2>
++++++++<p>The+following+components+are+currently+signed+in+to+Central+State+Service+Provider</p>
++++++++<ul+data-bind="foreach:+CentralState.signedInComponents()">
++++++++++++<li+data-bind="text:+$data"></li>
++++++++</ul>
++++++++<h2>Central+Data</h2>
++++++++<p>The+following+information+is+available+from+Central+Data+Service+Provider</p>
++++++++<table+class="table+table-bordered+table-responsive+table-hover">
++++++++++++<tr>
++++++++++++++++<th>Component+Name</th><th>Second+Value</th>
++++++++++++</tr>
++++++++++++
++++++++++++<tr>
++++++++++++++++<td+data-bind="text:+firstName"></td><td+data-bind="text:+secondName"></td>
++++++++++++</tr>
++++++++++++
++++++++</table>
++++++++<h3>End+of+Component+One!</h3>
++++</div>|1445600|app.js具有组件绑定|1445601|const+ko+=+require('knockout');

/**
+*+The+modules+that+follow+are+singleton+modules+that+do+not+appear+to+conflict+with+bindings
+*
+*/

const+CentralData+=+require('./service-providers/central-data');+++//+Mock+centralised+data/model+service
const+CentralState+=+require('./service-providers/central-state');+//+Mock+centralised+state+service

/**
+*+Register+knockout+web+components+-+these+work,+but+conflict+with+any+central+bindings
+*/

ko.components.register(
++++'component-one',
++++require('./components/component-one/component.js')
);

ko.components.register(
++++'component-two',
++++require('./components/component-two/component.js')
);

ko.components.register(
++++'component-three',
++++require('./components/component-three/component.js')
);

/**
+*+This+code+comes+from+http://www.knockmeout.net/2012/05/quick-tip-skip-binding.html
+*
+*+Telling+Knockout+to+Skip+Binding+Part+of+a+Page
+*
+*+However,+when+used+around+a+component,+the+component+does+not+load/run!
+*
+*/

ko.bindingHandlers.stopBinding+=+{
++++init:+function()+{
++++++++return+{+controlsDescendantBindings:+true+};
++++}
};

ko.virtualElements.allowedBindings.stopBinding+=+true;


/**
+*+centralViewModel+should+be+loadable+for+"all+of+the+page+not+managed+by+components"
+*
+*+That+is+the+goal+of+the+project,+which+I+am+failing+in+badly+at+the+moment
+*
+*/

const+centralViewModel+=+{
++++bindingWorked+:+ko.observable('The+binding+worked.+KO+view+model+centralViewModel+has+a+this+context+and+was+bound+to+the+html+correctly')
};

console.info('app.js+applying+bindings...');

/**
+*+The+next+line+should+bind+central+viewmodel+to+everything,+but+conflicts+with+components!!
+*/

ko.applyBindings(centralViewModel,document.body);

//+ko.applyBindings();+//+Pull+in+all+of+the+components


/**
Note:+to+avoid+binding+issues,+we+should+be+able+to+add+these+html+comments+around+each+component
+
+<component-name>
+
+However+-+when+we+do,+the+components+no+longer+work
+*/|1445602|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/brianlmerritt/knockout-babel-browserify-gulp^0|G|1R|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|19|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|1B|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|9|@]|C|$]]|$1|Q|3|R|5|H|7|1D|8|@]|9|@]|C|$I|J]]|$1|S|3|T|5|6|7|1E|8|@]|9|@]|C|$]]|$1|U|3|V|5|H|7|1F|8|@]|9|@]|C|$I|J]]|$1|W|3|-4|5|6|7|1G|8|@]|9|@]|C|$]]]|X|$Y|$5|Z|10|11|C|$12|13]]]]

<p>I have an example of web components here <a href="https://github.com/brianlmerritt/knockout-babel-browserify-gulp" rel="nofollow">https://github.com/brianlmerritt/knockout-babel-browserify-gulp</a></p>

<p>Typical main html with components:</p>

<pre><code>    &lt;div class="row"&gt;
        &lt;div class="panel panel-primary"&gt;
            &lt;div class="panel-heading"&gt;
                &lt;h2&gt;Three Component View Model Binding Test&lt;/h2&gt;
            &lt;/div&gt;
            &lt;div class="panel-body"&gt;
                &lt;!-- THE GOAL OF THE PROJECT IS TO BIND EVERYTHING BEFORE AND AFTER THE FOLLOWING COMPONENT WITH centralViewModel --&gt;
                &lt;!-- ###ko stopBinding: true --&gt;
                &lt;div class="col-md-4"&gt;
                    &lt;component-one&gt;&lt;/component-one&gt;
                &lt;/div&gt;
                &lt;div class="col-md-4"&gt;
                    &lt;component-two&gt;&lt;/component-two&gt;
                &lt;/div&gt;
                &lt;div class="col-md-4"&gt;
                    &lt;component-three&gt;&lt;/component-three&gt;
                &lt;/div&gt;
                &lt;!-- ###/ko --&gt;

                &lt;p&gt;Note: if component one did not load above, then check your browser console for errors&lt;/p&gt;
            &lt;/div&gt;
</code></pre>

<p>a typical component - note it is written in ES2015 (New Javascript)</p>

<pre><code>const ko = require('knockout')
        , CentralData = require('../../service-providers/central-data')
        , CentralState = require('../../service-providers/central-state')
        , template = require('./template.html');

    const viewModel = function (data) {

        //Make service providers accessible to data-bind and templates
        this.CentralData = CentralData;
        this.CentralState = CentralState;

        this.componentName = 'Component One';
        this.foo = ko.observable(`${this.componentName} Foo`);
        this.bar = ko.observableArray(this.componentName.split(' '));
        this.barValue = ko.observable("");
        this.bar.push('bar');
        this.addToBar = (stuffForBar) =&gt; {
            if(this.barValue().length &gt;= 1) {
                this.bar.push(this.barValue());
                CentralData.pushMoreData({firstName: this.componentName,secondName:this.barValue()});
            }
        };
        this.CentralState.signIn(this.componentName);
        if (CentralData.dataWeRetrieved().length &lt; 10) {
            var dataToPush = {firstName : this.componentName, secondName : 'Foo-Bar'};
            CentralData.pushMoreData(dataToPush);
        }
    };
    console.info('Component One Running');
    module.exports = {
        name: 'component-one',
        viewModel: viewModel,
        template: template
    };
</code></pre>

<p>template.html:</p>

<pre><code>    &lt;div&gt;
        &lt;h1 data-bind="text: componentName"&gt;&lt;/h1&gt;
        &lt;p&gt;Foo is currently: &lt;span data-bind="text: foo"&gt;&lt;/span&gt;&lt;/p&gt;
        &lt;p&gt;Bar is an array. It's values currently are:&lt;/p&gt;
        &lt;ul data-bind="foreach: bar"&gt;
            &lt;li data-bind="text: $data"&gt;&lt;/li&gt;
        &lt;/ul&gt;
        &lt;form data-bind="submit: addToBar"&gt;
            &lt;input type="text"
                   name="bar"
                   placeholder="Be witty!"
                   data-bind="attr: {id : componentName}, value : barValue" /&gt;
            &lt;button type="submit"&gt;Add A Bar&lt;/button&gt;
        &lt;/form&gt;
        &lt;h2&gt;Central State&lt;/h2&gt;
        &lt;p&gt;The following components are currently signed in to Central State Service Provider&lt;/p&gt;
        &lt;ul data-bind="foreach: CentralState.signedInComponents()"&gt;
            &lt;li data-bind="text: $data"&gt;&lt;/li&gt;
        &lt;/ul&gt;
        &lt;h2&gt;Central Data&lt;/h2&gt;
        &lt;p&gt;The following information is available from Central Data Service Provider&lt;/p&gt;
        &lt;table class="table table-bordered table-responsive table-hover"&gt;
            &lt;tr&gt;
                &lt;th&gt;Component Name&lt;/th&gt;&lt;th&gt;Second Value&lt;/th&gt;
            &lt;/tr&gt;
            &lt;!-- ko foreach: CentralData.dataWeRetrieved --&gt;
            &lt;tr&gt;
                &lt;td data-bind="text: firstName"&gt;&lt;/td&gt;&lt;td data-bind="text: secondName"&gt;&lt;/td&gt;
            &lt;/tr&gt;
            &lt;!-- /ko --&gt;
        &lt;/table&gt;
        &lt;h3&gt;End of Component One!&lt;/h3&gt;
    &lt;/div&gt;
</code></pre>

<p>app.js has the component bindings</p>

<pre><code>const ko = require('knockout');

/**
 * The modules that follow are singleton modules that do not appear to conflict with bindings
 *
 */

const CentralData = require('./service-providers/central-data');   // Mock centralised data/model service
const CentralState = require('./service-providers/central-state'); // Mock centralised state service

/**
 * Register knockout web components - these work, but conflict with any central bindings
 */

ko.components.register(
    'component-one',
    require('./components/component-one/component.js')
);

ko.components.register(
    'component-two',
    require('./components/component-two/component.js')
);

ko.components.register(
    'component-three',
    require('./components/component-three/component.js')
);

/**
 * This code comes from http://www.knockmeout.net/2012/05/quick-tip-skip-binding.html
 *
 * Telling Knockout to Skip Binding Part of a Page
 *
 * However, when used around a component, the component does not load/run!
 *
 */

ko.bindingHandlers.stopBinding = {
    init: function() {
        return { controlsDescendantBindings: true };
    }
};

ko.virtualElements.allowedBindings.stopBinding = true;


/**
 * centralViewModel should be loadable for "all of the page not managed by components"
 *
 * That is the goal of the project, which I am failing in badly at the moment
 *
 */

const centralViewModel = {
    bindingWorked : ko.observable('The binding worked. KO view model centralViewModel has a this context and was bound to the html correctly')
};

console.info('app.js applying bindings...');

/**
 * The next line should bind central viewmodel to everything, but conflicts with components!!
 */

ko.applyBindings(centralViewModel,document.body);

// ko.applyBindings(); // Pull in all of the components


/**
Note: to avoid binding issues, we should be able to add these html comments around each component
 &lt;!-- ko stopBinding: true --&gt;
 &lt;component-name&gt;
 &lt;!-- /ko --&gt;
 However - when we do, the components no longer work
 */
</code></pre>


blocks|key|1445615|text|好吧，感谢@Jeroen让我提供了一个更好的例子。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1445616|我的问题是，我用单引号包装参数，并使用{{handle+bars}}进行绑定。一旦我把那些拿掉，它看起来很好用。|offset|length|style|CODE|1445617|++++
++++<child-component+params="id:+'{{$parent.id}}'"></child-component>

++++
++++<child-component+params="id:+$parent.id"></child-component>|code-block|syntax|javascript|1445618|entityMap^0|0|J|F|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

<p>well, kudos to @Jeroen for making me provide a better example.</p>

<p>My issue was that I was wrapping the parameter in single quotes and using <code>{{handle bars}}</code> for the binding.  once I removed those it seems to be working fine.</p>

<pre><code>    &lt;!-- does not work --&gt;
    &lt;child-component params="id: '{{$parent.id}}'"&gt;&lt;/child-component&gt;

    &lt;!-- wow, this does work! --&gt;
    &lt;child-component params="id: $parent.id"&gt;&lt;/child-component&gt;
</code></pre>


<p>I really want to use nested <code>web-component</code> style markup, but I can never seem to get it to work.  I have it working because of the note <a href="https://stackoverflow.com/questions/33441503/how-do-i-access-array-members-in-a-knockout-component-in-a-foreach">here (in the answer)</a>:</p>

<blockquote>
  <p>The problem is due to how params are passed into a component when using the "web component" syntax.</p>
</blockquote>

<p>I don't really understand what they are saying, and the OP is dealing with arrays.  I understand that it creates computed observables out of things.  But <code>params</code> in my constructor of the nested component is always <code>$raw</code> and nothing.</p>

<pre><code>&lt;parent-component&gt;
  &lt;content&gt;
    &lt;!--works--&gt;
    &lt;div data-bind="component: { name: 'child-component', params: { id: $parent.id } }"&gt;&lt;/div&gt;

    &lt;!-- does not work --&gt;
    &lt;child-component params="id: '{{$parent.id}}'"&gt;&lt;/child-component&gt;

  &lt;/content&gt;
&lt;/parent-component&gt;
</code></pre>

<p><a href="https://jsfiddle.net/9m7ckyzo/1/" rel="nofollow noreferrer">jsFiddle</a></p>

<p>Why can't I nest <code>web-component</code> style knockout components and have binding work?</p>


How do I bind in nested knockout components using web-component markup?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我真的很想使用嵌套的web-component样式标记，但我似乎永远无法让它工作起来。我让它工作是因为音符问题在于在使用"web组件“语法时如何将params传递到组件中。我不太明白他们在说什么，OP正在处理数组。据我所知，它从事物中产生计算的可观测值。但是，在我的嵌套组件构造函数中，params始终是$raw，什么都...

问如何使用web组件标记绑定嵌套的剔除组件？
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问如何使用web组件标记绑定嵌套的剔除组件？EN