query-string - Parse and stringify URL query strings

•    Javascript

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🔥 Want to strengthen your core JavaScript skills and master ES6? I would personally recommend this awesome ES6 course by Wes Bos. You might also like his React course.Parse a query string into an object. Leading ? or # are ignored, so you can pass location.search or location.hash directly.

browser querystring query string qs param parameter url uri parse stringify encode decode

react-media - CSS media queries for React

•    Javascript

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react-media is a CSS media query component for React.A <Media> component listens for matches to a CSS media query and renders stuff based on whether the query matches or not.

react media media-query query css responsive

Objection.js - An SQL-friendly ORM for Node.js

•    Javascript

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Objection.js is an ORM for Node.js that aims to stay out of your way and make it as easy as possible to use the full power of SQL and the underlying database engine while keeping magic to a minimum.Objection.js is built on an SQL query builder called knex. All databases supported by knex are supported by objection.js. SQLite3, Postgres and MySQL are thoroughly tested.

orm knex sql query query-builder postgresql mysql sqlite3

sql.js - SQLite compiled to JavaScript through Emscripten

•    Javascript

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sql.js is a port of SQLite to JavaScript, by compiling the SQLite C code with Emscripten. It uses a virtual database file stored in memory, and thus doesn't persist the changes made to the database. However, it allows you to import any existing sqlite file, and to export the created database as a javascript typed array. There is no C bindings or node-gyp compilation here, sql.js is a simple javascript file, that can be used like any traditional javascript library. If you are building a native application in javascript (using Electron for instance), or are working in node.js, you will likely prefer to use a native binding of SQLite to javascript.

sql sqlite stand-alone relational database rdbms data query statement emscripten asm asm.js

qwery - a query selector engine

•    HTML

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Qwery is a modern selector engine built on top of querySelectorAll giving you practical utility. As of version 4.0, qwery no longer supports IE6 - IE8. If your application still requires this level of support, please see the final 3.x release.

ender query css selector-engine

precss - Use Sass-like markup in your CSS

•    Javascript

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PreCSS lets you use Sass-like markup and staged CSS features in CSS. PreCSS combines Sass-like syntactical sugar — like variables, conditionals, and iterators — with emerging CSS features — like color functions, logical and custom properties, media query ranges, and image sets.

postcss css postcss-plugin sass scss variables conditionals iterations iterators iterables iterate contents eaches elses fors ifs includes imports medias queries query mixins defaults functions colors customs dirs system-ui image-set logical properties blocks inlines starts ends any-link font-variant overflow-wrap caniuse

jQuery-QueryBuilder - jQuery plugin offering an interface to create complex queries

•    Javascript

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jQuery plugin offering an simple interface to create complex queries. jQuery-QueryBuilder is available on jsDelivr.

sql mongo gui query builder filter

defiant.js - http://defiantjs.com

•    Javascript

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DefiantJS provides the ability for you to build smart templates applicable on JSON structures, based upon proven & standardized technologies such as XSLT and XPath. DefiantJS also extends the global object JSON with the method "search", which enables searches on JSON structures with XPath expressions and returns matches as an array-like object.

xpath xslt web-worker json search browser xpath-queries query node

graphqurl - curl for GraphQL with autocomplete, subscriptions and GraphiQL

•    Javascript

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You can use TAB to trigger auto-complete. Ctrl+C to cancel the input and Ctrl+Q/Enter to execute the query. This is a custom GraphiQL where you can specify request's headers.

graphql cli curl query subscription mutations autocomplete oclif

sass-mq - A Sass mixin that helps you compose media queries in an elegant way.

•    CSS

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mq() is a Sass mixin that helps you compose media queries in an elegant way. Sass MQ was crafted in-house at the Guardian. Today, many more companies and developers are using it in their projects: see who uses Sass MQ.

responsive sass rwd mediaquery query queries media eyeglass-module

json-mask - Tiny language and engine for selecting specific parts of a JS object, hiding the rest.

•    Javascript

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This is a tiny language and an engine for selecting specific parts of a JS object, hiding/masking the rest.The main difference between JSONPath / JSONSelect and this engine is that JSON Mask preserves the structure of the original input object. Instead of returning an array of selected sub-elements (e.g. [{a: 1}, {z: 1}] from example above), it filters-out the parts of the object that you don't need, keeping the structure unchanged: {p: {a: 1}, z: 1}.

mask filter select fields projection query json

knex - A SQL query builder that is flexible, portable, and fun to use!

•    Javascript

---

Knex.js is a "batteries included" SQL query builder for Postgres, MSSQL, MySQL, MariaDB, SQLite3, and Oracle designed to be flexible, portable, and fun to use. It features both traditional node style callbacks as well as a promise interface for cleaner async flow control, a stream interface, full featured query and schema builders, transaction support (with savepoints), connection pooling and standardized responses between different query clients and dialects.

query-builder async sql query sql-query-builder

Cascalog - Data processing on Hadoop

•    Clojure

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Cascalog is a fully-featured data processing and querying library for Clojure or Java. The main use cases for Cascalog are processing "Big Data" on top of Hadoop or doing analysis on your local computer. Cascalog is a replacement for tools like Pig, Hive, and Cascading and operates at a significantly higher level of abstraction than those tools.

big-data data-analysis data-warehouse query hadoop hadoop-tools

bodybuilder - An elasticsearch query body builder :muscle:

•    Javascript

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An elasticsearch query body builder. Easily build complex queries for elasticsearch with a simple, predictable api. Check out the API reference documentation.

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js-search - JS Search is an efficient, client-side search library for JavaScript and JSON objects

•    Javascript

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JS Search is an efficient, client-side search library for JavaScript and JSON objects

search database indexing performance js clientside client-side local query

lodash-id - Makes it easy to manipulate id-based resources with lodash or lowdb

•    Javascript

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Finds and returns document by id or undefined.Adds document to collection, sets an id and returns created document.

database lodash lowdb underscore query id resource mixin

express-mongoose - Plugin for easy rendering of Mongoose async Query results.

•    Javascript

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Adds Mongoose Query and Promise support to Express. Include express-mongoose in your project, which performs the necessary bindings between express and mongoose.

express mongoose mongo render promise query

pouchdb-find - Easy-to-use query language for PouchDB. ⚠️ NOTICE ⚠️: moved to the PouchDB repo

•    Javascript

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Provides a simple, MongoDB-inspired query language that accomplishes the same thing as the map/reduce API, but with far less code. Eventually this will replace PouchDB's map/reduce API entirely. You'll still be able to use map/reduce, but it will be distributed as a separate plugin.

pouch pouchdb plugin find mango query couch couchdb

node-css-mqpacker - A tool for packing same CSS media query rules into one with PostCSS

•    Javascript

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It is a recommended way to use this tool. This package also installs a command line interface.

css media postcss-plugin query

osprey - Generate Node.JS API middleware from a RAML definition

•    Javascript

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Generate API middleware from a RAML definition, which can be used locally or globally for validating API requests and responses. Osprey can be used as a validation proxy with any other API server. Just install the module globally and use the CLI to set up the application endpoint(s) to proxy, as well as the RAML definition to use. Invalid API requests will be blocked before they reach your application server.

raml raml-tooling raml-codegen api validation json security errors proxy xml query headers form