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org.webjars.bowergithub.polymerelements:iron-input
Advanced tools
- Version published
- Maintainers
- 1
<iron-input>
<iron-input> adds two-way binding and custom validators using Polymer.IronValidatorBehavior
to <input>.
See: Documentation, Demo.
Usage
Installation
npm install --save @polymer/iron-input
In an html file
<html>
<head>
<script type="module">
import '@polymer/iron-input/iron-input.js';
</script>
</head>
<body>
<iron-input>
<input>
</iron-input>
</body>
</html>
In a Polymer 3 element
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-input/iron-input.js';
class SampleElement extends PolymerElement {
static get template() {
return html`
<iron-input>
<input>
</iron-input>
`;
}
}
customElements.define('sample-element', SampleElement);
Two-way binding
By default you can only get notified of changes to an input's value due to user input:
<input value="{{myValue::input}}">
iron-input adds the bind-value property that mirrors the value property, and can be used
for two-way data binding. bind-value will notify if it is changed either by user input or by script.
<iron-input bind-value="{{bindValue}}">
<input value="{{value::input}}">
</iron-input>
Custom validators
You can use custom validators that implement Polymer.IronValidatorBehavior with <iron-input>.
<iron-input auto-validate validator="my-custom-validator">
<input placeholder="only 'cat' is valid">
</iron-input>
Stopping invalid input
It may be desirable to only allow users to enter certain characters. You can use the
prevent-invalid-input and allowed-pattern attributes together to accomplish this. This feature
is separate from validation, and allowed-pattern does not affect how the input is validated.
<!-- only allow characters that match [0-9] -->
<iron-input allowed-pattern="[0-9]">
<input pattern="\d{5}">
</iron-input>
Contributing
If you want to send a PR to this element, here are the instructions for running the tests and demo locally:
Installation
git clone https://github.com/PolymerElements/iron-input
cd iron-input
npm install
npm install -g polymer-cli
Running the demo locally
polymer serve --npm
open http://127.0.0.1:<port>/demo/
Running the tests
polymer test --npm
FAQs
WebJar for iron-input
We found that org.webjars.bowergithub.polymerelements:iron-input demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 0 open source maintainers collaborating on the project.
Package last updated on 23 Jul 2019
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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