MCQ 1 Inside which HTML element do we put the JavaScript?

(A) < script > (B) < script > (C) < script > (D) < head >

MCQ 2 Which is the correct way to write a JavaScript array?

(A) var txt = new Array(1:"tim",2:"kim",3:"jim") (B) var txt = new Array:1=("tim")2=("kim")3=("jim") (C) var txt = new Array("tim","kim","jim") (D) var txt = new Array="tim","kim","jim"

MCQ 3 Choose the client-side JavaScript object?

(A) Database (B) Cursor (C) FileUpLoad (D) Client

MCQ 4 To set up the window to capture all Click events, we use which of the following statement?

(A) window.captureEvents(Event.CLICK); (B) window.handleEvents (Event.CLICK); (C) window.routeEvents(Event.CLICK ); (D) window.raiseEvents(Event.CLICK );

MCQ 5 Which of the following best describes JavaScript?

(A) an object-oriented scripting language. (B) a compiled scripting language. (C) a scripting language precompiled in the browser. (D) a low-level programming language.

MCQ 6 What are the two basic groups of dataypes in JavaScript?

(A) Reference types (B) Primitive (C) Both A and B (D) None of the above

MCQ 7 What is the output of the code given below

var a = '10';
var b = a = 20;
document.write(a+b);

(A) 30 (B) 1020 (C) 10+20 (D) error

MCQ 8 The _______ method of an Array object adds and/or removes elements from an array.

(A) Reverse (B) Shift (C) Slice (D) Splice

MCQ 9 What will be the output of the below code ?

console.log( typeof( '5' + 5))

(A) null (B) object (C) number (D) string

MCQ 10 Which of the following is the structure of an if statement?

(A) if (conditional expression is true) then {execute this code} (B) if (conditional expression is true) thenexecute this codeend if (C) if (conditional expression is true) execute this codeend if (D) if (conditional expression is true) {then execute this code}

MCQ 11 Which of the following is a JavaScript data type?

(A) object (B) undefined (C) null (D) All of the above

MCQ 12 Javascript string using double quotes is exactly the same as a string using single quotes?

(A) True (B) False (C) Can't say (D) None of the above

MCQ 13 JavaScript entities start with _________________ and end with _________________.

(A) Semicolon, Semicolon (B) Ampersand, semicolon (C) Ampersand, colon (D) Ampersand, semicolon

MCQ 14 Which of the following can't be done with client-side JavaScript?

(A) Sending a form's contents by email (B) Storing the form's contents to a database file on the server (C) Validating a form (D) None of the above

MCQ 15 What will be the output of the below code ?

var package;
console.log("Package: " + package)
console.log("Amount: " + amount);

(A) Package: undefined; An ReferenceError is thrown saying amount is not defined; (B) Package: null; An ReferenceError is thrown saying amount is not defined; (C) Package: null; Amount: null; (D) Package: undefined; Amount: undefined;

MCQ 16 The syntax of close method for document object is ______________

(A) Close(doc) (B) Close(object) (C) Close() (D) Close(val)

MCQ 17 The statement a===b refers to ____________________

(A) Both a and b are equal in value, type and reference address (B) Both a and b are equal in value (C) Both a and b are equal in value and type (D) There is no such statement

MCQ 18 Why so JavaScript and Java have similar name?

(A) They both originated on the island of Java (B) JavaScript's syntax is loosely based on Java's (C) JavaScript is a stripped-down version of Java (D) All of the above

MCQ 19 Which of the following is the correct syntax to display "knowledgeuniverseonline.com" in an alert box using JavaScript?

(A) alert-box("MCQ Practice Test Series by knowledgeuniverseonline.com"); (B) confirm("MCQ Practice Test Series by knowledgeuniverseonline.com"); (C) msgbox("MCQ Practice Test Series by knowledgeuniverseonline.com"); (D) alert("MCQ Practice Test Series by knowledgeuniverseonline.com")

MCQ 20 What is divide by 0 in Javascript?
var a = 10;
var b = 0;
document.write(a/b);

(A) Nothing is printed (B) 0 is printed (C) Some Garbage Value (D) Infinity is printed

MCQ 21 How to create a Date object in JavaScript?

(A) dateObjectName Date([parameters]) (B) dateObjectName = new Date([parameters]) (C) dateObjectName.new Date([parameters]) (D) dateObjectName := new Date([parameters])

MCQ 22 Which of the following is a syntactically correct for loop?

(A) for (i<=10;i++) (B) for i=1 to 10 (C) for (i=0;i<=10;i++) (D) for (i=0;i<=10)

MCQ 23 What is the code required to delete all "weight" tags?

(A) delete pt..weight; (B) delete pt; (C) delete weight(pt).all; (D) delete pt.element[all];

MCQ 24 A _____________ object is a reference to one of the classes in a Java package, such as netscape.javascript .

(A) JavaArray (B) JavaClass (C) JavaObject (D) JavaPackage

MCQ 25 What will be the output of the following JavaScript code?

function myfun()
{
document.getElementById ("demo").innerHTML = Boolean(21 > 15);
}

(A) True (B) False (C) error (D) 0

MCQ 26 What are the three important manipulations done in a for loop on a loop variable?

(A) Initialization, Testing, Updation (B) Testing, Updation, Testing (C) Updation, Incrementation, Initialization (D) Initialization, Testing, Incrementation

MCQ 27 The inner frame within a top-level window can be referred to as _________________

(A) parent(parent) (B) parent/parent (C) parent*parent (D) parent.parent

MCQ 28 JavaScript is designed for following purpose -

(A) to style HTML pages (B) to execute Queries related to databases on a server (C) to add interactivity to html pages (D) All of the above

MCQ 29 What will be the output of the following Javascript code?

var string1 = "Integer";
var valueinteger = 55;
alert( string1 + valueinteger );

(A) Integer 55 (B) Integer55 (C) 55 (D) error

MCQ 30 Using _______ statement is how you test for a specific true and false condition.

(A) select (B) if-else (C) switch (D) for loop