javascript-dasar/41.function-return-value.html at master · adiprrassetyo/javascript-dasar · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Function Return Value</title>
</head>
<body>
<script>

    function sayHello(firstName, lastName) {
        const say = `Hello ${firstName} ${lastName}`;
        return say;
    }

    const result = sayHello("Eko", "Khannedy");
    document.writeln(`<p>${result}</p>`);

    function getFinalValue(value) {
        if (value > 90) {
            return "A";
        } else if (value > 80) {
            return "B";
        } else if (value > 70) {
            return "C";
        } else if (value > 60) {
            return "D"
        } else {
            return "E";
        }
    }

    const finalValue = getFinalValue(76);
    document.writeln(`<p>${finalValue}</p>`);

    function isContains(array, searchValue){
        for (const element of array) {
            console.info(`Iterasi Element ${element}`);
            if(element === searchValue){
                return true;
            }
        }
        return false;
    }

    const array = [1,32,4324,3,43,53,53,43,43,535,35,5];
    const search = 43;
    const found = isContains(array, search);
    document.writeln(`<p>${found}</p>`);

</script>
</body>
</html>