Created
September 18, 2019 13:33
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useful text functions
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| export function object_to_searchable_text(obj: any): string { | |
| if (obj === undefined) { | |
| return ''; | |
| } else if (typeof obj === 'object') { | |
| const parts = []; | |
| for (const property of Object.keys(obj)) { | |
| parts.push(object_to_searchable_text(obj[property])); | |
| } | |
| return parts.join(' '); | |
| } else if (Array.isArray(obj)) { | |
| return obj.join(' '); | |
| } else { | |
| return obj.toString(); | |
| } | |
| } | |
| export function text_contains_all(text: string, searchText: string): boolean { | |
| if (searchText.length === 0) { | |
| return true; | |
| } | |
| const haystack = text.toLowerCase(); | |
| const texts = searchText | |
| .split(/\s/) | |
| .map(x => x.toLowerCase().trim()) | |
| .filter(x => x !== ''); | |
| for (const needle of texts) { | |
| if (haystack.indexOf(needle) === -1) { | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| export function object_matches_searchtext( | |
| obj: any, | |
| searchText: string | |
| ): boolean { | |
| try { | |
| const text = object_to_searchable_text(obj).toLowerCase(); | |
| return text_contains_all(text, searchText); | |
| } catch (e) { | |
| console.error('object_matches_searchtext', e); | |
| } | |
| return false; | |
| } |
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