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prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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Minimal async jobs utility library, with streams support
Extend an object with the properties of additional objects. node.js/javascript util.
- assign
- clone
- extend
- merge
- obj
- object
- object-assign
- object.assign
- prop
- properties
- property
- props
- shallow
- util
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Define a non-enumerable read-only property.
A tiny (203B) and fast utility to flatten an object with customizable glue
A tiny (194B) utility for safely writing deep Object values~!
Blue Button Utility ================
- findup
- getPrototypeOf
- ECMAScript 2017
- east-asian-width
- query
- deep-copy
- validate
- create
- typedarray
- shebang
- mocha
- sqs
- flags
- [[Prototype]]
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Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.
Test if an object has a specified property.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- object
- obj
- has
- hasown
- hasownproperty
- property
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Test if a value is a plain object.
Test if a value is a string.
Test if a value is a boolean.
Test if a value is a number.
Define (or modify) an object property.
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- optimist
- mkdir
- from
- Reflect.getPrototypeOf
- columns
- extension
- characters
- less.js
- assertion
- es6
- trimEnd
- URL
- WebSockets
- diff
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Return the prototype of a provided object.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- object
- obj
- prototype
- prototypeof
- proto
- polyfill
- inheritance
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Utility library to traverse AST
Various object utility functions