# Bar highlight (Highlight & filter example)

> WestCoast Charts 1.1.5, release, public Core release, on npm. HTML: https://westcoast-charts.com/gallery/highlight-filter/bar-highlight/ · Index for agents: https://westcoast-charts.com/llms.txt

Hover a bar to darken it; others stay put.

- Chart type: `bar` (Bar)
- Collection: Highlight & filter · Highlight filter
- Raw configuration: https://westcoast-charts.com/gallery-src/highlight-filter/bar-highlight.js
- Standalone example: https://westcoast-charts.com/embed/samples/wcc/gallery/highlight-filter/bar-highlight.html

## Setup

```js
import WestCoastCharts from 'west-coast-charts'
```

## Options

```js
const options = {
  chart: {
    height: 380,
    fontFamily: "Inter, Geist, \"IBM Plex Sans\", system-ui, sans-serif",
    type: "bar",
    toolbar: {
      show: false
    }
  },
  series: [
    {
      name: "NPS",
      data: [62, 54, 48, 41, 37, 22, 15]
    }
  ],
  xaxis: {
    categories: ["Lisbon", "Porto", "Madrid", "Paris", "Rome", "Athens", "Dublin"]
  },
  plotOptions: {
    bar: {
      horizontal: true,
      borderRadius: 3,
      distributed: true
    }
  },
  legend: {
    show: false
  },
  states: {
    hover: {
      filter: {
        type: "darken",
      }
    }
  },
  title: {
    text: "NPS by office"
  },
  theme: {
    mode: "light",
    preset: "coastal"
  }
}

const chart = new WestCoastCharts(document.querySelector('#chart'), options)
await chart.render()
```

## Verify

- Text check (Library 1.1.5): load `west-coast-charts/agent/describe` and call `chart.describe({ format: "json" })` for the actual drawn state. The live reader is on this example’s HTML page.
- Command line (Public agent tools 0.2.3, tested with Library 1.1.5; available from the versioned GitHub release and npm, https://westcoast-charts.com/docs/cli/index.md): `wcc chart export highlight-filter-bar-highlight.json --out highlight-filter-bar-highlight.svg --with-table` (save the options above as JSON first)