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4419 packages found
Test if a value is a Uint32Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- uint32array
- uint32
- unsigned
- integer
- int
- uint
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Test if a value is a number having a nonnegative integer value.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- number
- numeric
- integer
- int
- nonnegative
- is
- View more
Test if a value is a regular expression.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- valid
- validate
- regular expression
- regexp
- regex
- is
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Test if a value is a Float32Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- float32array
- float32
- float
- typed
- typed array
- typed-array
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Test if a value is a Float64Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- float64array
- float64
- double
- ieee754
- typed
- typed array
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Test if a value is a number having an integer value.
Test if a value is a number having a positive integer value.
A utility library to check if a value is empty in JavaScript.
Is this value a boxed primitive? Shim for node's util.isBoxedPrimitive.
Test if a value is a Uint16Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- uint16array
- uint16
- unsigned
- integer
- int
- uint
- View more
Test if a value is a collection.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- array
- typed array
- collection
- float64array
- float32array
- int32array
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Extend nodejs util api, and it is light weight and simple
An expressive type testing library
Test if a finite double-precision floating-point number is an integer.
Test if a double-precision floating-point numeric value is negative zero.
- stdlib
- stdmath
- assertion
- assert
- utilities
- utility
- utils
- util
- math
- mathematics
- ieee754
- floating-point
- float
- number
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Test if a value is a number having a nonnegative value.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- number
- numeric
- nonnegative
- is
- isnumber
- isnumeric
- View more
Sweet Path is small utility class, for replacing path parameters. It's size around 1kb before gzip.
check whether a value is a non-empty array
Test if a value is a number having a positive value.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- number
- numeric
- positive
- is
- isnumber
- isnumeric
- View more
Test if a value is NaN.