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@polymer/iron-selector
Advanced tools
##<iron-selector>
iron-selector
is an element which can be used to manage a list of elements
that can be selected. Tapping on the item will make the item selected. The selected
indicates
which item is being selected. The default is to use the index of the item.
Example:
<iron-selector selected="0">
<div>Item 1</div>
<div>Item 2</div>
<div>Item 3</div>
</iron-selector>
If you want to use the attribute value of an element for selected
instead of the index,
set attrForSelected
to the name of the attribute. For example, if you want to select item by
name
, set attrForSelected
to name
.
Example:
<iron-selector attr-for-selected="name" selected="foo">
<div name="foo">Foo</div>
<div name="bar">Bar</div>
<div name="zot">Zot</div>
</iron-selector>
You can specify a default fallback with fallbackSelection
in case the selected
attribute does
not match the attrForSelected
attribute of any elements.
Example:
<iron-selector attr-for-selected="name" selected="non-existing"
fallback-selection="default">
<div name="foo">Foo</div>
<div name="bar">Bar</div>
<div name="default">Default</div>
</iron-selector>
Note: When the selector is multi, the selection will set to fallbackSelection
iff
the number of matching elements is zero.
iron-selector
is not styled. Use the iron-selected
CSS class to style the selected element.
Example:
<style>
.iron-selected {
background: #eee;
}
</style>
...
<iron-selector selected="0">
<div>Item 1</div>
<div>Item 2</div>
<div>Item 3</div>
</iron-selector>
FAQs
Manages a set of elements that can be selected
The npm package @polymer/iron-selector receives a total of 14,082 weekly downloads. As such, @polymer/iron-selector popularity was classified as popular.
We found that @polymer/iron-selector 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.
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