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Issue 1834313003: Remove unneeded files from third_party/polymer. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Restore bower.json files. Created 4 years, 8 months ago
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1
2 <!---
3
4 This README is automatically generated from the comments in these files:
5 iron-meta.html
6
7 Edit those files, and our readme bot will duplicate them over here!
8 Edit this file, and the bot will squash your changes :)
9
10 -->
11
12 [![Build Status](https://travis-ci.org/PolymerElements/iron-meta.svg?branch=mast er)](https://travis-ci.org/PolymerElements/iron-meta)
13
14 _[Demo and API Docs](https://elements.polymer-project.org/elements/iron-meta)_
15
16
17 ##&lt;iron-meta&gt;
18
19
20 `iron-meta` is a generic element you can use for sharing information across the DOM tree.
21 It uses [monostate pattern](http://c2.com/cgi/wiki?MonostatePattern) such that a ny
22 instance of iron-meta has access to the shared
23 information. You can use `iron-meta` to share whatever you want (or create an ex tension
24 [like x-meta] for enhancements).
25
26 The `iron-meta` instances containing your actual data can be loaded in an import ,
27 or constructed in any way you see fit. The only requirement is that you create t hem
28 before you try to access them.
29
30 Examples:
31
32 If I create an instance like this:
33
34 <iron-meta key="info" value="foo/bar"></iron-meta>
35
36 Note that value="foo/bar" is the metadata I've defined. I could define more
37 attributes or use child nodes to define additional metadata.
38
39 Now I can access that element (and it's metadata) from any iron-meta instance
40 via the byKey method, e.g.
41
42 meta.byKey('info').getAttribute('value');
43
44 Pure imperative form would be like:
45
46 document.createElement('iron-meta').byKey('info').getAttribute('value');
47
48 Or, in a Polymer element, you can include a meta in your template:
49
50 <iron-meta id="meta"></iron-meta>
51 ...
52 this.$.meta.byKey('info').getAttribute('value');
53
54
55
56 ##&lt;iron-meta-query&gt;
57
58
59 `iron-meta` is a generic element you can use for sharing information across the DOM tree.
60 It uses [monostate pattern](http://c2.com/cgi/wiki?MonostatePattern) such that a ny
61 instance of iron-meta has access to the shared
62 information. You can use `iron-meta` to share whatever you want (or create an ex tension
63 [like x-meta] for enhancements).
64
65 The `iron-meta` instances containing your actual data can be loaded in an import ,
66 or constructed in any way you see fit. The only requirement is that you create t hem
67 before you try to access them.
68
69 Examples:
70
71 If I create an instance like this:
72
73 <iron-meta key="info" value="foo/bar"></iron-meta>
74
75 Note that value="foo/bar" is the metadata I've defined. I could define more
76 attributes or use child nodes to define additional metadata.
77
78 Now I can access that element (and it's metadata) from any iron-meta instance
79 via the byKey method, e.g.
80
81 meta.byKey('info').getAttribute('value');
82
83 Pure imperative form would be like:
84
85 document.createElement('iron-meta').byKey('info').getAttribute('value');
86
87 Or, in a Polymer element, you can include a meta in your template:
88
89 <iron-meta id="meta"></iron-meta>
90 ...
91 this.$.meta.byKey('info').getAttribute('value');
92
93
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