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621 packages found
Utility for easily mocking user responses for BDD unit tests that ask user a question.
Functions to test/check, filter, find and process/transform objects
Test if a value is a Date object.
Test if an ndarray is read-only.
- stdlib
- stdtypes
- types
- base
- ndarray
- multidimensional
- array
- utilities
- utility
- utils
- util
- assert
- test
- check
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Test if a double-precision floating-point number is a probability.
E2E test utilify functions
Test if a value is undefined.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- undefined
- void
- is
- isundefined
- isvoid
- type
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Test if an object has a specified method name, either own or inherited.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- object
- obj
- has
- hasown
- hasownproperty
- hasprop
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Test if a value is a semantic version string.
Type check values. This is a fork of sindresorhus/is, but with CommonJS support.
Test if a value is a 2-dimensional ndarray-like object.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- is
- isndarray
- ndarray
- ndarray-like
- matrix
- ismatrix
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Test if an input value is an ndarray order.
- stdlib
- stdtypes
- types
- base
- ndarray
- order
- row-major
- column-major
- c
- fortran
- layout
- memory
- multidimensional
- array
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Test if an input value is a supported ndarray data type.
- stdlib
- stdtypes
- types
- base
- ndarray
- dtype
- data
- multidimensional
- array
- utilities
- utility
- utils
- util
- assert
- View more
Test if an object's own property is writable.
Test if a string starts with the characters of another string.
Test if an input value is a supported array complex-valued floating-point data type.
Test if a value is a 1-dimensional ndarray-like object.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- is
- isndarray
- ndarray
- ndarray-like
- vector
- isvector
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Test if an object's own property is non-enumerable.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- object
- obj
- is
- has
- enumerable
- non-enumerable
- View more
Test if an input value is a supported ndarray index mode.
Test if a value is a string having an uppercase first character.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- is
- iscapitalized
- capitalized
- string
- valid
- validate