Test if two arguments are approximately the same value within a specified number of ULPs (units in the last place).
Test if a value is a string.
Test if a value is a Buffer object.
Test if a value is a boolean.
Test if a value is a Float64Array.
Test if a value is a Uint32Array.
Test if a value is a function.
Test if a value is object-like.
Test if a value is a plain object.
Test if a value is an array.
Test if a value is a regular expression.
Test if an object has a specified property.
Test if a value is a Uint16Array.
Test if a value is a Uint8Array.
Test if a value is a number.
Test if a value is an object.
Test if a value is a Float32Array.
Test if a value is a regular expression string.
Test if a double-precision floating-point numeric value is NaN.
Test if a double-precision floating-point numeric value is infinite.
Test if a double-precision floating-point numeric value is negative zero.
Test if a value is a number having a nonnegative integer value.
Test if a double-precision floating-point numeric value is positive zero.
Check if an environment is big endian.