Algorithm that validates a false value.

Quiz 3

//There are only six falsey values in JavaScript: undefined, null, NaN, 0, "" (empty string), and false of course.

/**
 * @fuction determineFalsy
 * @param {value} input 
 * @returns false
 */
 let determineFalsy = (input) => {
     
      if (!input) return true
        return false
   }

   module.exports = determineFalsy

tests

const determineFalsy  = require('../../falsy')


//Determining null of falseValue
    test('Determining null of falseValue', () =>{
        expect(determineFalsy()).not.toBeNull()
    });
   
//Determining if underfined is a falsy value
    test('Determining if underfined is a falsy value', () =>{
        expect(determineFalsy(undefined)).toBe(true);
    });

//Determining if value is NaN of falseValue
    test('Determining if value is NaN of falseValue', () =>{
        expect(determineFalsy(NaN)).toBe(true)
    });
 
//Determining if 0 is afalseValue
    test('Determining if 0 is afalseValue', () =>{
        expect(determineFalsy(0)).toBe(true)
    });

//Determining if empty string is a falsy value
    test('Determining if empty string is a falsy value', () =>{
        expect(determineFalsy("")).toBe(true)
    });

//Determining if string is a falsy value
    test('Determining if string is a falsy value', () =>{
        expect(determineFalsy("abudi")).not.toBe(true)
    });

//Determining if value is false
test('Determining if value is false', () =>{
    expect(determineFalsy(1)).not.toBe(true)
    
});