javascript_tutorial

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Javascript NOTE: This example returns objects for forms and elements and we would have to access their values by using those object properties which are not discussed in this <strong>tutorial</strong>. Output This is main title Click the following to see the result: Click Me Cancel Don’t Click Me The IE 4 DOM This document object model was introduced in Version 4 of Microsoft's Internet Explorer browser. IE 5 and later versions include support for most basic W3C DOM features. Document Properties in IE 4 DOM The following non-standard (and non-portable) properties are defined by Internet Explorer 4 and later versions. S.No Property and Description activeElement 1 A read-only property that refers to the input element that is currently active (i.e., has the input focus). Ex: document.activeElement 336
Javascript all[ ] 2 An array of all Element objects within the document. This array may be indexed numerically to access elements in source order, or it may be indexed by element id or name. Ex: document.all[ ] Charset 3 The character set of the document. Ex: document.charset children[ ] 4 An array that contains the HTML elements that are the direct children of the document. Note that this is different from the all [ ] array that contains all the elements in the document, regardless of their position in the containment hierarchy. Ex: document.children[ ] defaultCharset 5 The default character set of the document. Ex: document.defaultCharset expand 6 This property, if set to false, prevents client-side objects from being expanded. Ex: document.expando parentWindow 7 The window that contains the document. Ex: document.parentWindow 8 readyState 337
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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
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13. FUNCTIONS Javascript A function
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Javascript Click the following butt
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Javascript Click the following but
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Javascript Use different parameters
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Javascript var variablename = funct
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14. EVENTS Javascript What is an Ev
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Javascript ....... onmouseove
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Javascript ondragenter script Trigg
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Javascript onplaying script Trigger
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15. COOKIES Javascript What are Coo
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Javascript Enter name: Outp
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Javascript Setting Cookies Expiry D
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Javascript Output Enter Cookie Na
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Javascript Example Try the followin
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Javascript setTimeout('Redirect()',
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17. DIALOG BOX Javascript JavaScrip
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Javascript Output Click the fol
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18. VOID KEYWORD Javascript void is
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Javascript Click the followin
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Javascript 2. If you do not want to
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Javascript 104
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Javascript Methods are useful for e
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Javascript Output Book title is
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Javascript User-defined objects /
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Javascript In the following section
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Javascript Click the following t
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Javascript Day of the Month must be
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Javascript alert("Value of bigNumbe
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Javascript constructor It returns a
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Javascript Try the following exampl
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Javascript document.write(""); docu
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Javascript document.write("num.toPr
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Javascript Returns the primitive va
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Javascript Returns the function tha
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Javascript Method toSource() toStri
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Javascript Output flag.toString
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23. STRING Javascript The String ob
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Javascript concat() indexOf() lastI
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Javascript document.writeln("str.ch
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Javascript Argument Details string2
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Javascript lastIndexOf () This meth
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Javascript var index = str1.localeC
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Javascript substring. $n or $nn Whe
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Javascript Search () This method ex
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Javascript document.write( sliced )
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Javascript Return Value Returns a s
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Javascript JavaScript String toLow
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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 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 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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Page 296 and 297: Javascript First Test Value : 3.141
Page 298 and 299: Javascript JavaScript Math atan() M
Page 300 and 301: Javascript var value = Math.atan2(+
Page 302 and 303: Javascript Example Try the followin
Page 304 and 305: Javascript Output First Test Value
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Page 308 and 309: Javascript min ( ) This method retu
Page 310 and 311: Javascript var value = Math.pow(7,
Page 312 and 313: Javascript Return Value Returns the
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Page 318 and 319: 27. REGEXP Javascript A regular exp
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Page 322 and 323: Javascript m g Specifies that if th
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Page 326 and 327: Javascript Test1 - ignoreCase prope
Page 328 and 329: Javascript if ( re.multiline ){ doc
Page 330 and 331: Javascript exec ( ) The exec method
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Page 336 and 337: Javascript There are several DOMs i
Page 338 and 339: Javascript forms[ ] 9 An array of F
Page 340 and 341: Javascript Ex: document.close( ) op
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Page 344 and 345: Javascript createElement( tagName)
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Page 350 and 351: Javascript NOTE: This example
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Page 354 and 355: Javascript Logical Errors Logic err
Page 356 and 357: Javascript Now let us try to catch
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Page 362 and 363: 30. FORM VALIDATION Javascript Form
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Page 366 and 367: Javascript var emailID = document.m
Page 368 and 369: Javascript Manual Animation So let'
Page 370 and 371: Javascript } function moveRight(){
Page 372 and 373: Javascript It is not possible to s
Page 374 and 375: Javascript Output Checking for Plug
Page 376 and 377: Javascript //--> If you
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Page 380 and 381: Javascript Use a JavaScript Debugge
Page 382 and 383: 34. IMAGE MAP Javascript You can us
Page 384 and 385: Javascript Output You can feel the
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Page 388: Javascript document.write(" Browser
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