True Packages

Throw TypeError if not a value is array-like. The undefined value always evaluates to true.

Return the index of the first element of an array where the callback returns true. Returns -1 if none do.

Return the last element of an array where the callback returns true.

Check whether a condition is true for any element of an array. The condition check is in the form of a callback.

Returns true if the predicate is satisfied for every element of the passed array; otherwise false.

Returns true if the element exists in the array

Returns true if 'value' is a constructor

Returns true if the argument is a function; false otherwise.

Returns true of value 'v' is null.

Returns true if the argument is a string; false otherwise.

() => true

Detect whether a value is falsy.

Simple true/false check.

A simple function to check if a piece of data is truthy. JavaScript version.

Returns true if a given boolean is not true, and false if it is true

Check if a value is true.

returns randomly true or false

Check if a value has no self equality

Check if a value has self equality