Is this value negative zero? === will lie to you

Test if a double-precision floating-point numeric value is negative zero.

Socket.dev optimized package override for is-negative-zero

Test if a single-precision floating-point numeric value is negative zero.

Test if a value is equal to negative zero.

Provides the number negative zero

Test if a half-precision floating-point number is negative zero.

Validates if a value is negative zero.

Take your code from negative zero to zero in zero

Determine if a value is negative zero

Returns the sign of a number, indicating whether the number is positive, negative, or zero, or negative zero. Non-finite values are coerced to zero.

Inverts the sign of a value. Zero becomes negative zero. Non-numeric values are coerced to zero. Infinity is negated to -Infinity, and vice versa.

A tiny, PEG-like system for building language grammars with regexes.

Fast robust predicates for computational geometry

Calculates the quotient of two values. Non-finite or non-numeric values are coerced to zero. Division by positive zero returns infinity, and divison by negative zero returns negative infinity. If you divide zero by zero it returns NaN.

An arbitrary length integer library for Javascript

io-ts library for bigints

traverse and transform objects by visiting every node on a recursive walk

io-ts library for numbers

Pure-JS printf