If-else and Loop in JS (Practical 2)

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Practical #2</title>
</head>
<body>
    <h2>Practical #2 : Develop a javascript to use decision making and looping statements.</h2>
    <hr>
    <h3>Are your eligible to get Vaccinated?</h3>
    <button onclick="isEligible()">Check here to Know</button>

    <h3>Print the table of any number</h3>
    <button onclick="displayTable()">Get the Table</button>
    
</body>

<script>
    function isEligible(){
        var age  = parseInt(prompt("Enter your Current Age"))

        // using if else
        if(age > 18){
            alert("Congractulations! You are eligible to get Vaccinated")
        }
        else if(age >=0 && age < 18 ){  
            alert("currently you are not eligible to get Vaccinated")
        }
        else if(age == 18){
            alert("Congractulations! You are now eligible to get Vaccinated")
        }
        
    }
    function displayTable(){
        var number  = parseInt(prompt("Enter number"))
        var counter=1
        var elements
        var numberArray=[]
        
        // using loop
        while (counter<11) {
            elements = number*counter
            numberArray[counter]=elements
            counter++
        }
        var table =numberArray.toString()
        alert("Table of "+"number ->"+table)
    }
</script>

</html>
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