vue-highlight-words

:information_source: This is the branch for vue-highlight-words 2 (For Vue 3). If you are looking for Vue 2.0 support, please check out 1.0 branch

A simple port from react-highlight-words

Vue component to highlight words within a larger body of text.

demo

Why?

It uses render to handle the highlighted text instead of using v-html or el.innerHtml.

Installation

npm i --save vue-highlight-words

Usage

To use it, just provide it with an array of search terms and a body of text to highlight.

<template>
  <div id="app">
    // attrs on component are applied to the wrapper `<span>`
    <Highlighter class="my-highlight" :style="{ color: 'red' }"
      highlightClassName="highlight"
      :searchWords="keywords"
      :autoEscape="true"
      :textToHighlight="text"/>
  </div>
</template>

<script>
import Highlighter from 'vue-highlight-words'

export default {
  name: 'app',
  components: {
    Highlighter
  },
  data() {
    return {
      text: 'The dog is chasing the cat. Or perhaps they\'re just playing?',
      words: 'and or the'
    }
  },
  computed: {
    keywords() {
      return this.words.split(' ')
    }
  }
}
</script>

And the Highlighter will mark all occurrences of search terms within the text:

Props

| Property | Type | Required? | Description | | :------------------- | :------------------ | :-------: | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | activeClassName | String | | The class name to be applied to an active match. Use along with activeIndex | | activeIndex | Number | | Specify the match index that should be actively highlighted. Use along with activeClassName | | activeStyle | Object | | The inline style to be applied to an active match. Use along with activeIndex | | autoEscape | Boolean | | Escape characters in searchWords which are meaningful in regular expressions | | caseSensitive | Boolean | | Search should be case sensitive; defaults to false | | findChunks | Function | | Use a custom function to search for matching chunks. This makes it possible to use arbitrary logic when looking for matches. See the default findChunks function in highlight-words-core for signature. Have a look at the custom findChunks example on how to use it. | | highlightClassName | String | | CSS class name applied to highlighted text | | highlightStyle | Object | | Inline styles applied to highlighted text | | sanitize | Function | | Process each search word and text to highlight before comparing (eg remove accents); signature (text: string): string | | searchWords | Array | ✓ | Array of search words. The search terms are treated as RegExps unless autoEscape is set. | | textToHighlight | String | ✓ | Text to highlight matches in |

Custom render with v-slot

Use a default slot with v-slot props

type SlotProps = HighlighterItem[]

type HighlighterItem = {
  text: string // chunk of text to render
  attrs: HighlightAttrs
  chunk: Chunk
}

type HighlightAttrs = {
  class: string // class for highlight tag: highlightClassNames
  key: number // index of the chunk
  style: Partial<CSSStyleDeclaration> // highlightStyles
  highlightIndex: number // index of highlight tag
}

type Chunk = {
  start: number
  end: number
  highlight: boolean
}

  <template>
    <div id="app">
      // attrs on component are applied to the wrapper `<span>`
      <Highlighter class="my-highlight" :style="{ color: 'red' }"
        highlightClassName="highlight"
        :searchWords="keywords"
        :autoEscape="true"
-       :textToHighlight="text"/>
+       :textToHighlight="text"
+       v-slot="items">
+       <div>
+         <span v-for="{chunk, text, attrs} in items" :key="attrs.key"
+           :class="{chunk.highlight: 'highlight' : ''}"
+         >{{text}}</span>
+       </div>
+     </Highlighter>
    </div>
  </template>

  <script>
  import Highlighter from 'vue-highlight-words'

  export default {
    name: 'app',
    components: {
      Highlighter
    },
    data() {
      return {
        text: 'The dog is chasing the cat. Or perhaps they\'re just playing?',
        words: 'and or the'，
      }
    },
    computed: {
      keywords() {
        return this.words.split(' ')
      }
    }
  }
  </script>

Project setup

pnpm install

Compiles and hot-reloads for development

pnpm dev

Compiles and minifies for production

pnpm build

Lints and fixes files

pnpm lint

License

MIT License - fork, modify and use however you want.