codeup-web-exercises/FunctionsLecture.html at main · riosalexandra/codeup-web-exercises · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Functions Lecture</title>
</head>
<body>

<script>

    "use strict";


    // ================ !! Mini-exercises !!

    // Write a function, returnFive, that returns the number five. No inputs should be defined.

             function returnFive(){
              return 5;
             }

         //how to check if it works correctly ^^^?
             console.log(returnFive())


    // Write a function, isFive, that takes in an input and returns the boolean value true if the passed argument is the number 5 or the string "5". Return false otherwise.

    //how many inputs should a function have? answer: 1
    //what are the data types for the inputs? answer: any data type
    //what is the data type of the output/return value? answer: boolean

    function isFive(input)  {
                 return input == 5;

    }
    //alternative possible solution
    function isFive(input)  {
        return input === 5 || input === '5';

    }

    console.log(isFive('5'), true);
    console.log(isFive(5), true);
    console.log(isFive("zzz"), false);
    console.log(isFive(33), false);
             //test it out?^

    // Write a function, isShortWord, that takes in a string and returns the boolean value true if the passed argument is shorter than 5 characters. Return false otherwise.

    //how many inputs? answer: 1
    //type of inputs? answer: string
    //what is the return type? answer: boolean (true or false)

    function isShortWord(stringInput) {
        return stringInput.length < 5;

    }

    //test is out
    console.log(isShortWord("password"), false);
    console.log(isShortWord("five"), true);
    console.log(isShortWord(" "), true);
    console.log(isShortWord("aaaaa"), false);


    // Write a function, isSameLength, that takes in two string inputs and returns the boolean value true if the passed arguments are the same length. Return false otherwise.
    function isSameLength(str1, str2) {
        //create variable to store boolean comparing strings
        //return variable output
        // var strsAreSameLength = str1.length === str2.length;
        //return variable output
        // return strsAreSameLength;

        return str1.length === str2.length;
    }

    // example inputs/outputs

    console.log(isSameLength("cat", "hat"), true);
    console.log(isSameLength("dog", "plane"), false);
    console.log(isSameLength("plane", "dog"), false);
    console.log(isSameLength("   ", "dog"), true);
    console.log(isSameLength("   ", "   "), true);


    // Write a function, getSmallerSegment, that takes in a string and a number input. The function should return a substring of the first argument that is as many characters long as the second argument in lowercase.

    // example input: getSmallerSegment("Codeup", 3)
    // example output: "cod"

// getSmallerSegment('dog', 1) // return 'd'
    // getSmallerSegment ('Hello', 2) // return "he"


    //how many inputs? 2
    //what type of inputs? string and number
    //type of output? string

    function getSmallerSegment(str, segmentLength){
        return str.substring(0, segmentLength).toLowerCase();
    }

//Test expectations w input/output
    console.log(getSmallerSegment("Codeup", 3), "cod");
    console.log(getSmallerSegment('dog', 1), "d");
    console.log(getSmallerSegment ('Hello', 2), "h");


</script>


</body>
</html>