Utilities Packages

Test if a value is an array-like object containing only probabilities.

Test whether a value is a property key.

Test if an object's prototype chain contains a provided prototype.

Test if a value is a ragged nested array

Test if a value is a RangeError object.

Test if an object's own property is read-only.

Test if an object's own or inherited property is read-only.

Test if an object's own property is readable and writable.

Test if an object's own and inherited property is readable and writable.

Test if an object's own property is readable.

Test if an object's own or inherited property is readable.

Test if a value is a ReferenceError object.

Test if a value is a regular expression.

Test if a value is a regular expression string.

Test if a value is a regular expression string.

Test if a value is falsy.

Test if a value is an array-like object containing only falsy values.

Test if a value is a finite number.

Test if a value is an array-like object containing only finite numbers.

Test if a value is a Float32Array.