Is Packages

Returns `true` if text is upper case only.

Returns `true` if text is lower case only

Validates if a value is an array of arrays and has equal dimensions.

Checks is iterable is empty.

Strictly checks that given value is nodejs EventEmitter. It's easy, because his API is in frozen state.

A isPlainObject implement.

Check whether HTML element is visible or not

A simple validation to check if a string or array contains a know first name

Binary searches rightmost value in sorted array.

Binary searches rightmost value in sorted array.

Binary searches leftmost value in sorted array.

Binary searches closest value in sorted array.

Binary searches closest value in sorted array.

Binary searches leftmost value in sorted array.

simple validations

Regular expression for detecting Jinja or Nunjucks code

Checks if a value is a timestamp

Builds array from a seed value (dual to foldr).

Builds array from a seed value (dual to foldr).

type-checking utility library for testing type match/mismatch, testing for common type categories, getting types of tested instances, and a few extra