Syntax Change - Migrating from JQuery Templates to JsRender

Question

Can anyone help out on how to render a JSRender template after migrating from JQuery Templates?

With the old JQuery Template system I have got the following in my HTML page:

        <script id="pageTmpl1" type="text/x-jquery-tmpl">
        <div class="${theClass1}" style="${theStyle1}">
            <div class="front1">
                <div class="outer1">
                    <div class="content1" style="${theContentStyleFront1}">
                        <div class="inner1">{{html theContentFront1}}</div>
                    </div>
                </div>
            </div>
            <div class="back1">
                <div class="outer1">
                    <div class="content1" style="${theContentStyleBack1}">
                        <div class="inner1">{{html theContentBack1}}</div>
                    </div>
                </div>
            </div>
        </div>

and then kick it off from a separate js file - excerpt from this file here, with $( '#pageTmpl1' ).tmpl( pageData ).appendTo( this.$el ); being the key part:

        _layout             : function() {

        this._setLayoutSize();

        for( var i = 0; i <= this.pagesCount - 2; ++i ) {

            var $page       = this.$pages.eq( i ),
                pageData    = {
                    theClass1                   : 'page1',
                    theContentFront1            : $page.html(),
                    theContentBack1             : ( i !== this.pagesCount ) ? this.$pages.eq( i + 1 ).html() : '',
                    theStyle1                   : 'z-index: ' + ( this.pagesCount - i ) + ';left: ' + ( this.windowProp.width / 2 ) + 'px;',
                    theContentStyleFront1       : 'width:' + this.windowProp.width + 'px;',
                    theContentStyleBack1        : 'width:' + this.windowProp.width + 'px;'
                };

            if( i === 0 ) {

                pageData.theClass1 += ' cover1';

            }
            else {

                pageData.theContentStyleFront1 += 'left:-' + ( this.windowProp.width / 2 ) + 'px';

                if( i === this.pagesCount - 2 ) {

                    pageData.theClass1 += ' cover-back1';

                }

            }

            $( '#pageTmpl1' ).tmpl( pageData ).appendTo( this.$el );

        }

        this.$pages.remove();
        this.$flipPages     = this.$el.children( 'div.page1' );
        this.flipPagesCount = this.$flipPages.length;

        this._adjustLayout( ( this.state === undefined ) ? this.currentPage : this.state );

    },

Does anyone know how I would have to alter the basic setup above in order to migrate to JSRender?

EDIT:

Thanks for your response.

To give some context to my question, here are two examples; the first using jQuery Templates, the second (with advised changes) using JSRender.

1. http://www.timm.ie/example_jqt/
2. http://www.timm.ie/example_jsr/

Though following the indicated syntactical changes, ultimately the desired result is not appearing (in the second case), with no errors to work from.

Changes made were from:

        <script id="pageTmpl" type="text/x-jquery-tmpl">
        <div class="${theClass}" style="${theStyle}">
            <div class="front">
                <div class="outer">
                    <div class="content" style="${theContentStyleFront}">
                        <div class="inner">{{html theContentFront}}</div>
                    </div>
                </div>
            </div>
            <div class="back">
                <div class="outer">
                    <div class="content" style="${theContentStyleBack}">
                        <div class="inner">{{html theContentBack}}</div>
                    </div>
                </div>
            </div>
        </div>          
    </script>

to:

        <script id="pageTmpl" type="text/x-jsrender">
        <div class="{{:theClass}}" style="{{:theStyle}}">
            <div class="front">
                <div class="outer">
                    <div class="content" style="{{:theContentStyleFront}}">
                        <div class="inner">{{>theContentFront}}</div>
                    </div>
                </div>
            </div>
            <div class="back">
                <div class="outer">
                    <div class="content" style="{{:theContentStyleBack}}">
                        <div class="inner">{{>theContentBack}}</div>
                    </div>
                </div>
            </div>
        </div>  

in the index.html, and from:

$( '#pageTmpl' ).tmpl( pageData ).appendTo( this.$el );

to:

$("this.$el").html(
                $("#pageTmpl").render(pageData)
            );

in jquery.flips.js.

Any advice you could offer as to why this is would be appreciated.

Answer 1

Here is a page using jQuery Templates:
jquery-tmpl/demos/step-by-step/.../0_local-data-source.html.

And here is the equivalent page using jsRender:
jsrender/demos/step-by-step/01_inserting-data.html (Code here).

So you see that

jQuery Templates:

$("#movieTemplate").tmpl(movies).appendTo("#movieList");

maps to:

jsRender

$("#movieList").html(
    $("#movieTemplate").render(movies)
);

In fact JsRender does not use the DOM to render.

So you can also write the above as:

var html = $("#movieTemplate").render(movies); // Render to string
$("#movieList").html(html); // Insert in DOM

Alternatively you can write:

var compiledTemplate = $.templates("#movieList"); // Compile template
var html = compiledTemplate.render(movies);  // Render to string
$("#movieList").html(html); // Insert in DOM

The string-based rendering is one reason for the better perf with JsRender.

As to how the template tags map, here are some of the basic tags:

jQuery Templates:

• ${name}
• {{html synopsis}}
• {{if languages}}...{{else subtitles}}...{{else}}...{{/if}}
• {{each languages}}...{{/each}}

jsRender

• {{:name}} (See docs)
• {{>synopsis}} (See docs)
• {{if languages}}...{{else subtitles}}...{{else}}...{{/if}}
  (So no change here: See docs)
• {{for languages}}...{{/for}} (See docs)