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# js_tutorial

## Javascript Day of the

Javascript Day of the Month must be between 1 and 31. NEGATIVE_INFINITY This is a special numeric value representing a value less than Number.MIN_VALUE. This value is represented as "-Infinity". It resembles an infinity in its mathematical behavior. For example, anything multiplied by NEGATIVE_INFINITY is NEGATIVE_INFINITY, and anything divided by NEGATIVE_INFINITY is zero. Because NEGATIVE_INFINITY is a constant, it is a read-only property of Number. Syntax The syntax to use NEGATIVE_INFINITY is as follows: var val = Number. NEGATIVE_INFINITY; Example Try the following example. Click the following to see the result: 116

Javascript Output Click the following to see the result: Click Me Value of val : -Infinity POSITIVE_INFINITY This is a special numeric value representing any value greater than Number.MAX_VALUE. This value is represented as "Infinity". It resembles an infinity in its mathematical behavior. For example, anything multiplied by POSITIVE_INFINITY is POSITIVE_INFINITY, and anything divided by POSITIVE_INFINITY is zero. As POSITIVE_INFINITY is a constant, it is a read-only property of Number. Syntax Use the following syntax to use POSITIVE_INFINITY. var val = Number. POSITIVE_INFINITY; Example Try the following example to learn how use POSITIVE_INFINITY.

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About the Tutorial JavaScript is a

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Bitwise Operators .................

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23. String ........................

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setUTCDate () .....................

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Checking for Plug-Ins .............

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1. OVERVIEW Javascript What is Java

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Javascript components, integrates w

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Javascript This function can be use

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Javascript The following example sh

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Javascript JavaScript in Chrome Her

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4. PLACEMENT Javascript There is a

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Javascript This code will

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5. VARIABLES Javascript JavaScript

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Javascript Within the body of a fun

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6. OPERATORS Javascript What is an

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Javascript the right operand, if ye

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Javascript Output (a == b) => false

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Javascript Output (a && b) => fal

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Javascript document.write("(a | b)

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Javascript Ex: C /= A is equivalent

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Javascript Set the variables to dif

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Javascript Function Undefined Null

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7. IF-ELSE Javascript While writing

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Javascript Output Qualifies for dri

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Javascript Try the following code t

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Javascript Syntax The objective of

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Javascript switch (grade) { case 'A

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Javascript Syntax The syntax of whi

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Javascript do{ Statement(s) to be e

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10. FOR LOOP Javascript The for Loo

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Javascript Current Count : 6 Curren

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Javascript Set the variable to diff

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Javascript Set the variable to

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Javascript Entering the loop 2 3 4

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Javascript Output Entering th

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13. FUNCTIONS Javascript A function

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Javascript blink () This method cau

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Javascript Try the following exampl

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Javascript JavaScript String font

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Javascript JavaScript String strik

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Javascript JavaScript String sup(

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Javascript input length prototype T

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Javascript Prototype The prototype

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Javascript push() reduce() reduceRi

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Javascript every () Javascript arra

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Javascript } var passed = [12, 5, 8

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Javascript Array.prototype.filter =

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Javascript } }; Example Try the fol

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Javascript var len = this.length; v

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Javascript join () Javascript array

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Javascript var from = Number(argume

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Javascript } var index = [12, 5, 8,

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Javascript Array.prototype.map = fu

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Javascript Its syntax is as follows

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Javascript var rv = arguments[1]; }

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Javascript } } throw new TypeError(

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Javascript } rv = this[i--]; break;

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Javascript } rv = fun.call(null, rv

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Javascript Output Removed element

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Javascript { } if (i in this && fun

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Javascript Return Value Returns a s

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Javascript toString () Javascript a

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25. DATE Javascript The Date object

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Javascript Return Value Returns the

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Javascript Date Methods Here is a l

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Javascript universal time. setUTCMo

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Javascript Syntax Its syntax is as

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Javascript Example Try the followin

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Javascript var dt = new Date(); d

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Javascript getMonth() : 11 getSecon

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Javascript Syntax Its syntax is as

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Javascript Try the following exampl

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Javascript Output getUTCHours() :

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Javascript Syntax Its syntax is as

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Javascript JavaScript getYear Met

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Javascript JavaScript setFullYear

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Javascript If you specify a number

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Javascript monthValue : An integ

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Javascript setTime () Javascript da

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Javascript Date.setUTCFullYear(year

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Javascript document.write( dt );

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Javascript Try the following exampl

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Javascript Example Try the followin

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Javascript var dt = new Date(1993,

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Javascript toLocaleDateString () Ja

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Javascript Syntax Its syntax is as

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Javascript For instances of Date,

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Javascript var dateobject = new

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Javascript Output 743850547000 Date

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Javascript minutes : An integer

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Javascript In the following section

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Javascript Example Try the followin

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Javascript Property Value is : 0.43

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Javascript JavaScript Math SQRT2 P

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Javascript Try the following exampl

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Javascript First Test Value : 3.141

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Javascript JavaScript Math atan() M

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Javascript var value = Math.atan2(+

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Javascript Example Try the followin

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Javascript Output First Test Value

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Javascript var value = Math.log(10

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Javascript min ( ) This method retu

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Javascript var value = Math.pow(7,

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Javascript Return Value Returns the

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Javascript Output First Test Val

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Javascript Example Try the followin

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27. REGEXP Javascript A regular exp

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Javascript Examples Following examp

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Javascript m g Specifies that if th

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Javascript Try the following exampl

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Javascript Test1 - ignoreCase prope

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Javascript if ( re.multiline ){ doc

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Javascript exec ( ) The exec method

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Javascript document.write("Test 2 -

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Javascript document.write("Test 1 -

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Javascript There are several DOMs i

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Javascript forms[ ] 9 An array of F

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Javascript Ex: document.close( ) op

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Javascript This is main title Click

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Javascript createElement( tagName)

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Javascript NOTE: This example r

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Javascript NOTE: This example

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Javascript Logical Errors Logic err

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Javascript Now let us try to catch

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Javascript Output Click the followi

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Javascript Click the following to s

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30. FORM VALIDATION Javascript Form

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Javascript Basic Form Validation Fi

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Javascript var emailID = document.m

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Javascript Manual Animation So let'

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Javascript } function moveRight(){

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Javascript It is not possible to s

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Javascript Output Checking for Plug

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Javascript //--> If you

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Javascript Error Messages in Firefo

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Javascript Use a JavaScript Debugge

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34. IMAGE MAP Javascript You can us

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Javascript Output You can feel the

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Javascript 6 plugins[] This propert

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Javascript document.write(" Browser

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