Right option is (C) beforeClass()

The best explanation: There are several functions for CSS manipulation. Some of them are css(), removeClass(), toggleClass(), addClass(). The style attribute is returned by css() METHOD. Classes are added by addClass() method. Classes are removed by removeClass() method. The toggling between adding and removing classes is ACHIEVED by toggleClass() method.

Correct option is (a) document.write()

To elaborate: For TESTING we USED document.write() in JavaScript. If we use document.write() after HTML document, it will DELETE all existing HTML. This method can only be used for testing purposes.

Correct CHOICE is (a) vsides

Explanation: The rules which will APPEAR between cells of the table is specified by this attribute. It can take the values groups, NONE, rows, all and cols. None is the DEFAULT VALUE, rows are for appearance between rows only and cols is for columns only.

Correct answer is (d) VALUEOF()

The explanation is: There are MAINLY three methods with the help of those we can convert variables to numbers. The methods are the parseFloat() method, the Number() method, the parseInt() method. These are GLOBAL JAVASCRIPT methods. valueOf() method return number as a number only.

Correct choice is (a) Internet Explorer 8

To EXPLAIN: While USING SLICE(), substr() and SUBSTRING() method we pass numbers as parameters respective to the string. E.g var tes= str.slice(-10). -10 is indicates negative position. It does not WORK in Internet Explorer or older versions.

Right OPTION is (a) javaEnabled()

To ELABORATE: There are TWO navigator object methods namely taintEnabled() and javaEnabled(). taintEnabled() the ability of the browser of data TAINTING. This METHOD can’t be used in JavaScript 1.2 version. javaEnabled() method specifies whether Java is enabled in the browser or not.

The correct option is (B) $(selector).ACTION()

Explanation: The basic syntax of jQuery is $(selector).action(), $ sign defines access of jQuery, (selector) is HTML element, action() is for the jQuery action that is to be PERFORMED. E.g. $(“h1”).hide(), this will hide all the

ELEMENTS.

The correct option is (c) middle

The explanation is: align attribute is the ALIGNMENT of data and for justification of text in the cell. It can take the values LEFT, RIGHT, justify, CENTER, char. Justify is for double justifying the text, char is for aligning text around a particular character.

The CORRECT choice is (c) debugger

Easiest EXPLANATION: By using debugger keyword execution of JavaScript stops, and is debugger function is defined it is called at the moment, break is the keyword used to TERMINATE a loop or a switch, return is used for exit from a function, try…catch handle the ERRORS.

The CORRECT option is (d) UNESCAPE()

The BEST I can explain: Some of the window object methods are atob(), close(), focus(), blur(), alert(), CLEARINTERVAL(), confirm(), btoa(), getComputedStyle(), open(), moveTo(), prompt(), matchMedia(), moveBy(), getSelection(), scroll(), setInterval(), stop(), setTimeout() etc.

Right CHOICE is (a)

Right OPTION is (d) language

Explanation: The screen OBJECT properties are availWidth, pixelDepth, width, HEIGHT, colorDepth, availDepth. The TOTAL width of the screen is returned by width, height returns the total height of the screen, pixelDepth returns color resolution of the screen in pixels.

Correct choice is (b) BASE 10

The best I can explain: base 10 decimals are displayed as numbers by default by JAVASCRIPT. We can use toString() method for converting numbers as any of the base among 16, 2, 8. E.g var NUMBER= 1256; number.toString(6); number.toString(16); number.toString(2).

The CORRECT answer is (d) document.origin

To explain: PROPERTIES of DOM METHOD are: document.anchors, document.applets, document.baseURI, document.body, document.cookie, document.doctype, document.documentElement, document.documentMode, document.documentURI, document.domain, document.domConfig, document.embeds, document.forms, document.head, document.images, document.implementation, document.inputEncoding, document.lastModified, document.links, document.readyState, document.referrer, document.scripts, document.strictErrorChecking, document.title and document.URL.

Right choice is (a)

Right option is (d) each()

Easiest EXPLANATION: compile(), toString(), exec(), test() are some of the regular expression methods in JAVASCRIPT. Compile() is method that compiles regular expression. Test() method is for matching in a STRING. Exec() is also for matching in a string but it returns FIRST match. toString() method returns string VALUE.

The correct answer is (a) compile()

Easiest explanation: There are various global FUNCTIONS in JavaScript, decodeURI(), escape(), ISFINITE(), eval(), isNaN(), encodeURI(), DECODEURICOMPONENT(), encodeURIComponent(), isFinite(), is NaN(), parseFloat(), String(), parseInt(), UNESCAPE() are some of the methods.

The CORRECT choice is (d) after()

Best explanation: There are three methods for the traversal of DOM tree. Parent(), parentsUntil(), PARENTS(). Direct parent element is returned by parent() METHOD. All the ancestor elements are returned by parents() method. All the ancestor elements that are between given TWO arguments are returned by parentsUntil() method.

Right option is (a) random number between 0 and 1

To explain I WOULD say: Math.random() generate any random number between 0 and 1. If we use Math.random() with Math.floor() it returns any random integer. E.g. Math.floor(Math.random * 1000); It will generate any random number between 0 and 999. For the SAKE of CONVENIENCE we can also DEFINE a random function.

Correct answer is (d) slideIn()

Best explanation: jQuery have three slide methods namely slideUp(), slideDown() and slideToggle().

SYNTAX for slideDown() is $(selector).slideDown(SPEED,callback);

For slideUp() we USE $(selector).slideUp(speed,callback).

For slideToggle() METHOD the syntax is $(selector).slideToggle(speed,callback).

The correct answer is (B) [].

The explanation: ARRAYS in JavaScript are WRITTEN in square brackets. The elements of array are separated by commas. Index of array items starts from 0. E.g. var fruits= [“APPLE”, “orange”, “banana”, “pine-apple”]; objects in JavaScript are written inside curly brackets.

The correct choice is (c)

Right choice is (d) Yahoo

Easiest EXPLANATION: AJAX stands for Asynchronous JavaScript and XML. AJAX loads data in the BACKGROUND and then displays it on the webpage. The application of AJAX is on Gmail, YOUTUBE, Facebook and Google MAPS TABS. Several methods for AJAX functionality is provided by jQuery.

The CORRECT CHOICE is (c) $(“*”)

The best I can explain: In jQuery all the elments are SELECTED by writing $(“*”). $(this) helps in selecting current HTML element. All the button elements are selected by writing $(“:button”). If we want to select a SPECIFIC class we should write $(“.class_name”).

The CORRECT choice is (b) DOUBLE precision floating POINT

The best I can explain: The numbers according to international IEEE 754 standard are stored as a double precision floating point. It stores the numbers in 64-bit format, stored in bits from 0 to 51, exponent in bits is from 52 to 62 and signs in a bit is 63.

The correct choice is (a) NEXT()

Easy EXPLANATION: The BASIC filtering methods are EQ(), not(), FILTER(), last() and first(). The first element is returned by first() method, last element is returned by last() method, the specific index number of element is returned by eq() method.

Right answer is (c) split()

The EXPLANATION: For converting any string to an ARRAY we use split() method. E.g. var tr=”t,o,I,k,l”; tr.split(“,”); tr.split(“|”); tr.split(“ ”); charAt returns a character from the given INDEX, charCodeAt() returns Unicode of character at the given index. toLowerCase() method converts input string into LOWER case string.

Right option is (d)

Right choice is (c) document

For explanation I WOULD say: The navigator OBJECT properties are appVersion, cookieEnabled, appCodeName, GEOLOCATION, appName, product, userAgent, PLATFORM, online, language. Engine NAME of the browser is returned by product and the language of the browser is returned by language.

The correct answer is (c) \S

The explanation: There are metacharacters DEFINED in JavaScript. \S is used to find the NON-WHITESPACE character. \d is used for finding a digit. \s is used for finding whitespace character. \w is used to find word character. \W is used to find non word character.

The CORRECT OPTION is (a) $.post(URL,data,CALLBACK)

Explanation: The correct syntax for $.post() method is $.post(URL,data,callback). URL is the URL we want to request for. Callback is the NAME of the FUNCTION that is to be executed. Data specifies the data that is to be send with the request.

Correct OPTION is (d) 15 digits

Easy explanation: The INTEGERS in JavaScript have accuracy up to 15 digits. E.g. var y=111111111111111; // value of y will be 111111111111111. For DECIMAL the MAXIMUM number of decimals is 17.

Correct ANSWER is (d) false

Best explanation: For an empty STRING (“”), the Boolean value is false. E.g. var t= “ ”; Boolean(t); //it will return false. For -0(MINUS ZERO), the Boolean value is false. The Boolean value of undefined is also false. For null and false the Boolean value is also false.

Right choice is (a) justify

For EXPLANATION: valign attribute is for specifying the vertical position of the data in a cell. It can take the VALUES middle, top, baseline, bottom, Top is for the top of the cell’s data, middle is for the centered data, bottom is for the bottom of the cell, first text LINE OCCURS on the baseline which is common to all the cells.

The CORRECT answer is (d)

Right ANSWER is (d) css()

To EXPLAIN I would SAY: There are various important methods for dimension. Some of them are height(), innerHeight(), outerWidth(), outerHeight(), WIDTH(), innerWidth(). Width() method includes border, margin and padding. innerWidth() and innerHeight() method includes padding. outerHeight() and outerWidth() method includes border and padding. CSS() method is used for CSS manipulation in jQuery.

Right option is (b)

The correct answer is (b) fadeOn()

For EXPLANATION I WOULD say: jQuery has VARIOUS fade methods including fadeout(), fadeTo(), fadeToggle(), fadeIn().

The syntax of fadeIn() is $(SELECTOR).fadeIn(speed,callback);

For fadeout() we USE $(selector).fadeOut(speed,callback);

For fadeToggle we use $(slecetor).fadeToggle(speed,callback);

For fadeTo() syntax is $(selector).fadeTo(speed,opacity,callback).

Right answer is (c) constructor

Explanation: Window object properties are frames, history, frameElement, DEFAULTSTATUS, CLOSED, innerHeight, DOCUMENT, innerWidth, location, name, outerHeight, outerHeight, opener, pageXOffset, parent, screenTop, screen, screenLeft, screen, scroll, status, SELF, sessionStorage, top.