javascript_tutorial

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Javascript Click the following to see the result: Output Click the following to see the result: Click Me Value of Number.MIN_VALUE : 5e-324 NaN Unquoted literal constant NaN is a special value representing Not-a-Number. Since NaN always compares unequal to any number, including NaN, it is usually used to indicate an error condition for a function that should return a valid number. Note: Use the isNaN() global function to see if a value is an NaN value. Syntax The syntax to use NaN is: var val = Number.NaN; Example Try the following example to learn how to use NaN. 114
Javascript Click the following to see the result: Output Click the following to see the result: Click Me 115
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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 document.write("a - b =
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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
Page 74 and 75: 13. FUNCTIONS Javascript A function
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Page 80 and 81: Javascript Use different parameters
Page 82 and 83: Javascript var variablename = funct
Page 84 and 85: 14. EVENTS Javascript What is an Ev
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Page 88 and 89: Javascript ondragenter script Trigg
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Page 92 and 93: 15. COOKIES Javascript What are Coo
Page 94 and 95: Javascript Enter name: Outp
Page 96 and 97: Javascript Setting Cookies Expiry D
Page 98 and 99: Javascript Output Enter Cookie Na
Page 100 and 101: Javascript Example Try the followin
Page 102 and 103: Javascript setTimeout('Redirect()',
Page 104 and 105: 17. DIALOG BOX Javascript JavaScrip
Page 106 and 107: Javascript Output Click the fol
Page 108 and 109: 18. VOID KEYWORD Javascript void is
Page 110 and 111: Javascript Click the followin
Page 112 and 113: Javascript 2. If you do not want to
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Page 116 and 117: Javascript Methods are useful for e
Page 118 and 119: Javascript Output Book title is
Page 120 and 121: Javascript User-defined objects /
Page 122 and 123: Javascript In the following section
Page 126 and 127: Javascript Day of the Month must be
Page 128 and 129: Javascript alert("Value of bigNumbe
Page 130 and 131: Javascript constructor It returns a
Page 132 and 133: Javascript Try the following exampl
Page 134 and 135: Javascript document.write(""); docu
Page 136 and 137: Javascript document.write("num.toPr
Page 138 and 139: Javascript Returns the primitive va
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Page 142 and 143: Javascript Method toSource() toStri
Page 144 and 145: Javascript Output flag.toString
Page 146 and 147: 23. STRING Javascript The String ob
Page 150 and 151: Javascript concat() indexOf() lastI
Page 152 and 153: Javascript document.writeln("str.ch
Page 154 and 155: Javascript Argument Details string2
Page 156 and 157: Javascript lastIndexOf () This meth
Page 158 and 159: Javascript var index = str1.localeC
Page 160 and 161: Javascript substring. $n or $nn Whe
Page 162 and 163: Javascript Search () This method ex
Page 164 and 165: Javascript document.write( sliced )
Page 168 and 169: Javascript Return Value Returns a s
Page 170 and 171: Javascript JavaScript String toLow
Page 172 and 173: Javascript var str = "Apples are r
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Javascript were in a tag sup() Cau
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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 link(
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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 Output getUTCHours() :
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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 var dt = new Date(1993,
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Javascript toLocaleDateString () Ja
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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 Property Value is : 0.43
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Javascript JavaScript Math SQRT2 P
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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 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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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 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 Specifies the loading st
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Javascript NOTE: This example
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Javascript Part 3: JavaScript Advan
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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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