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@polymer/iron-dropdown
Advanced tools
Readme
<iron-dropdown>
displays content inside a fixed-position container,
positioned relative to another element.
See: Documentation, Demo.
npm install --save @polymer/iron-dropdown
<html>
<head>
<script type="module">
import '@polymer/iron-dropdown/iron-dropdown.js';
</script>
<style>
#container {
display: inline-block;
}
iron-dropdown {
border: 1px solid gray;
background: white;
font-size: 2em;
}
</style>
</head>
<body>
<div id="container">
<button onclick="dropdown.open();">open the iron-dropdown</button>
<iron-dropdown id="dropdown" no-overlap>
<div slot="dropdown-content">Hello!</div>
</iron-dropdown>
</div>
</body>
</html>
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-dropdown/iron-dropdown.js';
class SampleElement extends PolymerElement {
static get template() {
return html`
<style>
:host {
display: inline-block;
}
iron-dropdown {
border: 1px solid gray;
background: white;
font-size: 2em;
}
</style>
<button on-click="_openDropdown">open the dropdown</button>
<iron-dropdown id="dropdown" horizontal-align="right" vertical-align="top">
<div slot="dropdown-content">Hello!</div>
</iron-dropdown>
`;
}
_openDropdown() {
this.$.dropdown.open();
}
}
customElements.define('sample-element', SampleElement);
In the above example, the <div>
assigned to the dropdown-content
slot will
be hidden until the dropdown element has opened
set to true, or when the
open
method is called on the element.
If you want to send a PR to this element, here are the instructions for running the tests and demo locally:
git clone https://github.com/PolymerElements/iron-dropdown
cd iron-dropdown
npm install
npm install -g polymer-cli
polymer serve --npm
open http://127.0.0.1:<port>/demo/
polymer test --npm
FAQs
An unstyled element that works similarly to a native browser select
The npm package @polymer/iron-dropdown receives a total of 9,304 weekly downloads. As such, @polymer/iron-dropdown popularity was classified as popular.
We found that @polymer/iron-dropdown demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 11 open source maintainers collaborating on the project.
Did you know?
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