Knockout pattern binding

Question

I have an ul element that is populated by template binding.

<script type="text/html" id="someTemplate">
<li>
   <span data-bind="text: someText">
</li>
</script>

<ul data-bind="template: {foreach: someElemets, name: 'someTemplate'}">
</ul>

But I want the first li-tag to not be the li tag from the template, and the other with a button in it, and it will not be associated with someElemets array. If i do that

<ul data-bind="template: {foreach: someElemets, name: 'someTemplate'}">
    <li><button data-bind=click: doSomething">Click me</button></li>
</ul>

then the li-tag with the button will be the last after rendering. What is the best way to solve this problem?

Answer 1

You can use control flow syntax without a container, data binding using comment tags. No template needed. more details

<ul>     
    <li><button data-bind=click: doSomething">Click me</button></li>
    <!-- ko foreach: someElemets-->         
    <li>
        <span data-bind="text: someText"></span>
    </li>    
    <!-- /ko -->
</ul> 

Answer 2

This will do the following:

<!-- ko template: { name: 'template-name', data: vm } --> <!-- /ko -->

Answer 3

I do not know how easy it is to access the index inside the template. You can use the template options as described in How to use foreach with a special first element?

Your code will look something like this:

<ul data-bind="template: { name: 'someTemplate', foreach: someElemets, templateOptions: { first: someElemets()[0]} }">
</ul>

<script id="someTemplate" type="text/html">
    <li>
    {{if $item.first === $data}}
      <button data-bind="click: doSomething">Click me</button>
    {{/if}}
    <span data-bind="text: someText">
    </li>
</script>