access iteration index

[cyburk]

access iteration index

[BorisMoore]

It is available: {{=$itemNumber}}. You'll see it used in several samples, such as https://github.com/BorisMoore/jsrender/blob/master/demos/step-by-step/01_inserting-data.html
http://borismoore.github.com/jsrender/demos/step-by-step/01_inserting-data.html
[But see below for update. Syntax has changed...]

[cyburk]

hi boris,

thank you for your attention. i had a close look at your examples (just to
avoid my current position).
i haven't noticed the $, that's how i thought that itemNumber, Name, and
ReleaseYear all came from data:

{{=$itemNumber}}: {{=Name}} ({{=ReleaseYear}})

maybe {{=$ctx.index}} might be clearer, but the functionality is there, the
rest is personal taste.

thank you very much.
burk

On Wed, Dec 7, 2011 at 12:24 AM, Boris Moore <
[email protected]

wrote:

It is available: {{=$itemNumber}}. You'll see it used in several samples,
such as
https://github.com/BorisMoore/jsrender/blob/master/demos/step-by-step/01_inserting-data.html

http://borismoore.github.com/jsrender/demos/step-by-step/01_inserting-data.html

---

Reply to this email directly or view it on GitHub:
#33 (comment)

[kanejoe]

Hi Boris

   <li><a href="#">{{=page}}</a></li>
{{#each arrPages}}
    <li<a href="#">{{=page}}: {{=$itemNumber}}</a></li>             
{{/each}}

I can't access the {{=page}} within the each loop. Is this possible?

thanks, Joe.

[BorisMoore]

#34 says it all...

[kanejoe]

brilliant, thanks

[XianHain]

Is there a way to print a zero-based index?

I'm looking for something like

{{#each}}
    <div id="myBlock_{{=$zeroIndex}}">
{{/each}}

[BorisMoore]

For now, you have to call a helper function to do $itemNumber-1, but in Beta bits (coming soon I hope) it will be zero-based, and you will also be able to increment or decrement inline. In fact you will be able to write {{:#index}} for zero-based and {{:#index+1}} for 1-based. But more on that when the update is available... [See below for update]

[XianHain]

Thanks! much appreciated.

Christian Hain

On Feb 22, 2012, at 8:37 PM, Boris Moore wrote:

For now, you have to call a helper function to do $itemNumber-1, but in Beta bits (coming soon I hope) it will be zero-based, and you will also be able to increment or decrement inline. In fact you will be able to write {{:#index}} for zero-based and {{:#index+1}} for 1-based. But more on that when the update is available...

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Reply to this email directly or view it on GitHub:
#33 (comment)

[BorisMoore]

Some changes have been made the design.
#key corresponds to what was #index, and #index is now the inherited integer index from what the nearest parent view that has an integer index.
So #index is now unchanged when you wrap {{:#index}} in an {{if}} block.

[BorisMoore]

Further update: To access a zero-based index from an 'item' view, use {{:#index}}. To access the index from nested contexts such as {{if}} blocks, use {{:#getIndex()}}

[trifolius]

hey @BorisMoore have a range o for but decreasing...
for example

"{^{range members ^start=10 ^end=1}}"+
"{^{:#index}}"+
"{{/range}}"+

[BorisMoore]

@trifolius: Hi. What is your question?

[BorisMoore]

@trifolius: You should be able to create a custom tag to do that. You can use a combination of the approach used for the {{sort}} example, here: http://www.jsviews.com/#samples/jsr/tags/wrap-content and here: http://www.jsviews.com/#samples/jsr/helpers
and the {{range}} tag shown here: http://www.jsviews.com/#samples/jsr/tags/extend-for and here: http://www.jsviews.com/#samples/tag-controls/range