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  • Javascript Quiz

    • Javascript Quiz

    The test contains 20 questions and it's not official, it's just a nice way to see how much you know, or don't know, about Javascript.

    1.

    How do you write "Hello World" in an alert box?

    alertBox("Hello World");
    msg("Hello World");
    alert("Hello World");
    msgBox("Hello World");

    2.

    Where is the correct place to insert a JavaScript?

    Before <html>
    The <head> section
    The <body> section
    Both the <head> section and the <body> section are correct

    3.

    How do you find the number with the highest value of x and y?

    Math.ceil(x, y)
    Math.max(x, y)
    ceil(x, y)
    top(x, y)

    4.

    How do you create a function in JavaScript?

    function = myFunction()
    function:myFunction()
    function ()
    function myFunction()

    5.

    What is the correct syntax for referring to an external script called "xxx.js"?

    <script link="xxx.js">
    <script name="xxx.js">
    <script href="xxx.js">
    <script src="xxx.js">

    6.

    How to write an IF statement in JavaScript?

    if i = 5 then
    if i == 5 then
    if (i == 5)
    if i = 5

    7.

    How do you call a function named "myFunction"?

    call function myFunction()
    myFunction
    call myFunction()
    myFunction()

    8.

    How can you detect the client's browser name?

    navigator.browsername
    navigator.appName
    browser.name
    client.navName

    9.

    The external JavaScript file must contain the <script> tag.

    Neither True nor False
    False
    True
    Sometimes

    10.

    What is the correct JavaScript syntax to change the content of this html element <p id="demo">This is a demonstration.</p>

    #demo.innerHTML = "Hello World!";
    document.getElementByName("p").innerHTML = "Hello World!";
    document.getElement("p").innerHTML = "Hello World!";
    document.getElementById("demo").innerHTML = "Hello World!";

    11.

    How to write an IF statement for executing some code if "i" is NOT equal to 5?

    if (i <> 5)
    if i <> 5
    if i =! 5 then
    if (i != 5)

    12.

    Inside which HTML element do we put the JavaScript?

    <script>
    <javascript>
    <js>
    <scripting>

    13.

    How can you add a comment in a JavaScript?

    'This is a comment
    <!--This is a comment-->
    //This is a comment
    // This is a comment-->

    14.

    What is the correct JavaScript syntax for opening a new window called "w2" ?

    w2 = window.new("http://www.w3schools.com");
    w2 = open("http://www.w3schools.com");
    w2 = window("http://www.w3schools.com");
    w2 = window.open("http://www.w3schools.com");

    15.

    What is the correct way to write a JavaScript array?

    var colors = "red", "green", "blue"
    var colors = ["red", "green", "blue"]
    var colors = 1 = ("red"), 2 = ("green"), 3 = ("blue")
    var colors = (1:"red", 2:"green", 3:"blue")

    16.

    How do you round the number 7.25, to the nearest integer?

    Math.round(7.25)
    round(7.25)
    rnd(7.25)
    Math.rnd(7.25)

    17.

    How does a FOR loop start?

    for (i = 0; i <= 5)
    for (i = 0; i <= 5; i++)
    for (i <= 5; i++)
    for i = 1 to 5

    18.

    How does a WHILE loop start?

    while (i <= 10; i++)
    while (i <= 10)
    while (i is 10)
    while i = 1 to 10

     
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