(Javascript) Write a function that converts the alphabetical characters of first half of each argument to...

(Javascript) Write a function that converts the alphabetical characters of first half of each argument to uppercase and returns the result as one string. Number/s and special chars are ignored. If the length of string is not even, append an extra "-" (hyphen) to end of it to make it even.

Expert Solution

Included the script in a html file to test

TestScript.html

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8" />
    <script>
        //prompt and read a string from the user
        var str = window.prompt("Enter a string: ");
        //get the length of the string entered
        var strLength = str.length;
        //if the length is not even add hyphen to the last
        if (strLength % 2 != 0) {
            str = str.concat("-");
        }
        //get the result by calling the convert_to_uppercase function
        var res = convert_to_uppercase(str)
        //display the result
        window.alert(res);

        //function that takes a string as argument and returns the first half in uppercase
        function convert_to_uppercase(str) {
            var res = "";
            //get each character in first half of the string
            for (i = 0; i < (str.length) / 2; i++) {
                //convert the character into uppercase
                res = res.concat(str.charAt(i).toUpperCase());
            }
            //comment below if you don't want to add second half to result use below
            res = res.concat(str.substring((str.length) / 2, str.length))
            //return the result
            return res;
        }
    </script>
</head>
<body>
</body>
</html>

Output generated:

Code Screenshot:

venereology answered 1 year ago

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