chain-schema-validator

The perfect, feature-complete, chainable schema-based object validator for Node.js and browsers. Inspired by Joi.

v2025.9.8-2 URL: https://unpkg.com/chain-schema-validator@2025.9.8-2/index.js

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hoplon

utility module, immutable type validator & Erlang/Elixir style guards ( but with every imaginable method ).

v2.0.0 URL: https://unpkg.com/hoplon@2.0.0/dist/types/main.js

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lodash-pickdeep

A lodash mixin to add a `pickDeep` function

v1.0.2 URL: https://unpkg.com/lodash-pickdeep@1.0.2/index.js

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jest-chain

Chain Jest matchers together to create one powerful assertion

v1.1.6 URL: https://unpkg.com/jest-chain@1.1.6/dist/index.js

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jest matchers assertions chain chainable expect test

option-chain

Use fluent property chains in lieu of options objects

v1.0.0 URL: https://unpkg.com/option-chain@1.0.0/index.js

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option options chain chains chainable fluent