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Fuse.js with highlight
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| const highlight = (fuseSearchResult: any, highlightClassName: string = 'highlight') => { | |
| const set = (obj: object, path: string, value: any) => { | |
| const pathValue = path.split('.'); | |
| let i; | |
| for (i = 0; i < pathValue.length - 1; i++) { | |
| obj = obj[pathValue[i]]; | |
| } | |
| obj[pathValue[i]] = value; | |
| }; | |
| const generateHighlightedText = (inputText: string, regions: number[] = []) => { | |
| let content = ''; | |
| let nextUnhighlightedRegionStartingIndex = 0; | |
| regions.forEach(region => { | |
| const lastRegionNextIndex = region[1] + 1; | |
| content += [ | |
| inputText.substring(nextUnhighlightedRegionStartingIndex, region[0]), | |
| `<span class="${highlightClassName}">`, | |
| inputText.substring(region[0], lastRegionNextIndex), | |
| '</span>', | |
| ].join(''); | |
| nextUnhighlightedRegionStartingIndex = lastRegionNextIndex; | |
| }); | |
| content += inputText.substring(nextUnhighlightedRegionStartingIndex); | |
| return content; | |
| }; | |
| return fuseSearchResult | |
| .filter(({ matches }: any) => matches && matches.length) | |
| .map(({ item, matches }: any) => { | |
| const highlightedItem = { ...item }; | |
| matches.forEach((match: any) => { | |
| set(highlightedItem, match.key, generateHighlightedText(match.value, match.indices)); | |
| }); | |
| return highlightedItem; | |
| }); | |
| }; | |
| // usage: | |
| const res = highlight(fuse.search(text)); // array of items with highlighted fields |
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