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@patarapolw/qsearch

v1.2.2

Published

Search a database with a string. Designed for end-users.

Downloads

3

Readme

QSearch

Search a database with a string. Designed for end-users.

Demo

See https://q2search.herokuapp.com

This demo also allows is:unique as a special operator.

See /web/backend/src/schema.ts and /web/backend/src/shared.ts for schema and search options, respectively.

This compares between MongoDB, LokiJS, NeDB, and native Array.filter.

Usage

This is inspired from lunr.js search by fields, if specified, with some major differences.

  • Default connector is AND.
  • To make an OR, use ?expression.
  • Search is normally case-insensitive, i.e. a and A means the same thing.
  • +expression means exactly match, and case-sensitive.
  • -expression means negation.
  • Not only :, but also > and < is used to specify comparison. For example, +foo:bar, count>1.
  • NULL is a special keyword, meaning, not exists, undefined, or null.
  • TRUE and FALSE are special keywords, meaning, true and false, respectively.
  • Date comparison is enabled.
    • Special keyword: NOW.
    • +1h means next 1 hour. -1h mean 1 hour ago.
      • Available units are y (year), M (month), w (week), d (day), h (hour), m (minute).
  • Extra keywords, such as is:duplicate can be set.
  • Tested for loki.js, nedb, and MongoDB. Also, pure JavaScript Array filtering is possible too.
  • For SQL's, you might need extra work to convert to queries, or just use NoSQL's.
  • For now, fuzzy search is not supported.

Used in

This project is used in https://github.com/patarapolw/learn-unicode

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