make-error

Make your own error types!

v1.3.6 URL: https://unpkg.com/make-error@1.3.6/index.js

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create custom derive error errors extend extending extension factory inherit make subclass

superstruct

A simple and composable way to validate data in JavaScript (and TypeScript).

v2.0.2 URL: https://unpkg.com/superstruct@2.0.2/dist/index.cjs

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api array assert cast check checker collection data error express hapi interface invalid joi json list model object orm scalar schema struct throw type types valid validate validation validator

neverthrow

Stop throwing errors, and instead return Results!

v8.1.1 URL: https://unpkg.com/neverthrow@8.1.1/dist/index.cjs.js

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typescript functional fp error

errlop

An extended Error class that envelops a parent error, such that the stack trace contains the causation

v8.4.0 URL: https://unpkg.com/errlop@8.4.0/edition-browsers/index.js

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browser deno deno-edition deno-entry denoland error es2017 es2022 es5 export-default module nerror nested nested-error node ono simple typed types typescript verror

@metamask/superstruct

A simple and composable way to validate data in JavaScript (and TypeScript).

v3.1.0 URL: https://unpkg.com/@metamask/superstruct@3.1.0/dist/index.cjs

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api array assert cast check checker collection data error express hapi interface invalid joi json list model object orm scalar schema struct throw type types valid validate validation validator