js-basics/11-ifElseConditions.html at master · blackfalcon/js-basics · GitHub

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<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <title>Demo</title>
    </head>
    <body>
        <script type="text/javascript">
            // Fun with if/else and comparison operators

            var apple = 20;
            var orange = '20';
            var space = '</br>';

            // when comparing use `===` (strict) is equal to
            // this will also make sure your values are of the same type
            // Example: a string equals a string or an integer equals an integer
            // If you used just '==', apple and orange would be equal
            // Using just '==' you would get true when comparing 0 == ''
            if (apple === orange) {
                document.write('Apples are equal to oranges' + space)
            } else {
                document.write('Apples and oranges, not equal' + space)
            }

            // if apple IS NOT EQUAL to orange
            if (apple !== orange) {
                document.write('Apples do not equal oranges' + space)
            } else {
                document.write('Apples and oranges, living happy together' + space)
            }

            // compare actual values
            if (apple >= orange) {
                document.write('Apples are greater then or equal to oranges' + space)
            } else if (apple <= orange) {
                document.write('Apples are less then or equal to oranges' + space)
            }

        </script>

    </body>
</html>