Question about ?= syntax

[jmatsushita]

Hi there,

In the core-header-panel component, the following syntax is used:

<div id="mainContainer" flex?="{{mode !== 'cover'}}" on-scroll="{{scroll}}">
<content id="mainContent" select="*"></content>
</div>

Is the ?= part of the web component standard or is it polymer specific?

Cheers,

Jun

[addyosmani]

flex?= is Polymer specific to the best of my knowledge. See https://github.com/Polymer/TemplateBinding/blob/master/tests/tests.js#L928 for our unit tests around the feature.

[jmatsushita]

Thanks! Hopefully it won't be too much of an obstacle to convince html parser authors (@kangax) to allow for it.

[ebidel]

Docs are here:
http://www.polymer-project.org/docs/polymer/binding-types.html#conditional-attributes

On Mon, Jul 21, 2014 at 1:59 AM, Jun Matsushita notifications@github.com
wrote:

Thanks! Hopefully it won't be too much of an obstacle to convince html
parser
https://github.com/kangax/html-minifier/blob/gh-pages/src/htmlparser.js
authors (@kangax https://github.com/kangax) to allow for it.

—
Reply to this email directly or view it on GitHub
#650 (comment).

[ebidel]

Closing as this is not a bug.