Test if an object's prototype chain contains a provided prototype.
Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Test if an input value is a supported ndarray real-valued floating-point data type.
assert with status codes
Test whether two values are equal data types.
Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Test if an input value is a supported ndarray unsigned integer data type.
Test if a position in a string marks the start of a UTF-16 surrogate pair.
ES2015-compliant shim for Object.is - differentiates between -0 and +0
Test if an input value is a supported ndarray signed integer data type.
Insert supplied variable values into a format string.
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Test if a value is a string having an uppercase first character.
Test if a value is an empty collection.
Test if an ndarray is read-only.
Return a normal number `y` and exponent `exp` satisfying `x = y * 2^exp`.
Generate string from a token array by interpolating values.
C APIs for registering a Node-API module exporting an interface for invoking a binary numerical function.
Test if an input value is a supported ndarray output data type policy.
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Smallest positive double-precision floating-point normal number.
Double-precision complex number functions.
The bias of a double-precision floating-point number's exponent.