Polymer/old-docs-site

Add note for automatic capitalization detection of attribute bindings

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#2,490 创建于 2018年3月7日

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good first issue

描述

In https://github.com/Polymer/polymer/pull/5125 we are fixing bindings to HTML attributes that have capitalization. The resulting change is the following:

Rather than the broken viewBox$="[[binding]]", Polymer will now automatically set an attribute when encountering viewBox="[[binding]]". This will only work if the attribute maintains capitalization. This is only the case for existing attributes, which mostly live in the SVG namespace: https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute

This clarifying note should probably be added to https://www.polymer-project.org/2.0/docs/devguide/data-binding#attribute-binding

贡献者指南

技术栈
htmljavascript
领域
documentation
议题类型
documentation
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
1
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
under 1 hour
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
familiarity with Polymer data binding documentation
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
90
研究方向
Review the referenced PR #5125 in Polymer/polymer to understand the change. Then locate the data binding documentation page at polymer project.org/2.0/docs/devguide/data binding#attribute binding and add a note explaining that automatic capitalization detection works only for existing SVG attributes with capital letters, as detailed in the MDN SVG attribute reference.