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Jquery Templates: One parent container, many children?

开发者 https://www.devze.com 2023-02-06 10:57 出处:网络
Using jquery templates, I want to create a list.I want one parent <ul /> element with many <li /> elements, resulting in:

Using jquery templates, I want to create a list. I want one parent <ul /> element with many <li /> elements, resulting in:

<ul>
  <li>One</li>
  <li>Two</li>
</ul>

My data is similar to this:

var data =
[
  { val: 'One' },
  { val: 'Two' }
]

Currently, the child <li /> template looks like this:

<script id="child-tmpl" type="text/x-jquery-tmpl">
    <li>
      ${val}
    </li>
</script>

To get the result I want, I'm cu开发者_如何学Crrently doing this:

$('<ul></ul>').append($("#answer-tmpl").tmpl(data));

But this only half-embraces the spirit of Jquery Templates. I don't want to do any string version of my markup (as above).

Rather, does anyone have an idea on what the parent <ul /> Jquery Template might look like?


Instead of giving tmpl an array, give it an object which has the array as a field:

$("#answer-tmpl").tmpl({ data: data });

Then you can modify your template like this:

<script id="answer-tmpl" type="text/x-jquery-tmpl">
  <ul>
    {{each data}}
    <li>
      ${val}
    </li>
    {{/each}}
  </ul>
</script>

You can see a working example at http://jsfiddle.net/YNm3n/


jt - there's a fantastic example of this at dave wards encosia that will allow you to leverage nice compact composition on jquery templates. take a mosey over to:

http://encosia.com/2010/12/02/jquery-templates-composite-rendering-and-remote-loading/

I think it'll get you onto the path of convention over configuration on this type of thing, it did me.


var data = ['a', 'b', 'c'];

var list = $('<ul/>');
$.each(data, function(idx, val) {
    $('<li/>').html(val).appendTo(list);
});
$('body').append(list);

This does the job without any string representations. However, the code in your question is much more efficient as there is no need for a DOM manipulation for every item.

Reading http://www.learningjquery.com/2009/03/43439-reasons-to-use-append-correctly about the performance issue with DOM insertions is a good idea.

Edit: Looking at the other answer now it seems I've misread the question. I'll leave this answer here anyway so people see that way including the comment why it's bad.

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