Validate Packages

Test if a value is equal to negative zero.

Test if a value is Node duplex stream-like.

Test if a value is Node readable stream-like.

Test if a value is Node stream-like.

Test if a value is Node transform stream-like.

Test if a value is Node writable stream-like.

Test if an object's own property is non-configurable.

Test if an object's own or inherited property is non-configurable.

Test if an object's own property is non-enumerable.

Test if an object's own or inherited property is non-enumerable.

Test whether a string contains only white space characters.

Test whether a string contains only white space characters.

Test if an object's own property is writable.

Return a function which tests if every element in an array-like object passes a test condition.

Return a function which tests if every element in a typed array passes a test condition.

Test whether all elements in a collection are truthy.

Test whether all elements in a collection pass a test implemented by a predicate function.

Test whether all elements in a collection pass a test implemented by a predicate function, iterating from right to left.

Test whether all properties (own and inherited) of an object pass a test implemented by a predicate function.

Test whether all own properties of an object pass a test implemented by a predicate function.