js_tutorial

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Javascript var from = Number(arguments[1]); if (isNaN(from)) { from = len - 1; } else { from = (from < 0) ? Math.ceil(from) : Math.floor(from); if (from < 0) from += len; else if (from >= len) from = len - 1; } } for (; from > -1; from--) { if (from in this && this[from] === elt) return from; } return -1; }; Example Try the following example. JavaScript Array lastIndexOf Method 196
Javascript if (!Array.prototype.lastIndexOf) { Array.prototype.lastIndexOf = function(elt /*, from*/) { var len = this.length; var from = Number(arguments[1]); if (isNaN(from)) { from = len - 1; } else { from = (from < 0) ? Math.ceil(from) : Math.floor(from); if (from < 0) from += len; else if (from >= len) from = len - 1; } for (; from > -1; from--) { if (from in this && this[from] === elt) return from; } return -1; }; 197
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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
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 166 and 167: Javascript Try the following exampl
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
Page 174 and 175: Javascript were in a tag sup() Cau
Page 176 and 177: Javascript blink () This method cau
Page 180 and 181: Javascript JavaScript String font
Page 182 and 183: Javascript JavaScript String link(
Page 184 and 185: Javascript JavaScript String strik
Page 186 and 187: Javascript JavaScript String sup(
Page 188 and 189: Javascript input length prototype T
Page 190 and 191: Javascript Prototype The prototype
Page 192 and 193: Javascript push() reduce() reduceRi
Page 194 and 195: Javascript every () Javascript arra
Page 196 and 197: Javascript } var passed = [12, 5, 8
Page 198 and 199: Javascript Array.prototype.filter =
Page 200 and 201: Javascript } }; Example Try the fol
Page 202 and 203: Javascript var len = this.length; v
Page 204 and 205: Javascript join () Javascript array
Page 208 and 209: Javascript } var index = [12, 5, 8,
Page 210 and 211: Javascript Array.prototype.map = fu
Page 212 and 213: Javascript Its syntax is as follows
Page 214 and 215: Javascript var rv = arguments[1]; }
Page 216 and 217: Javascript } } throw new TypeError(
Page 218 and 219: Javascript } rv = this[i--]; break;
Page 220 and 221: Javascript } rv = fun.call(null, rv
Page 222 and 223: Javascript Output Removed element
Page 224 and 225: Javascript { } if (i in this && fun
Page 226 and 227: Javascript Return Value Returns a s
Page 228 and 229: Javascript toString () Javascript a
Page 230 and 231: 25. DATE Javascript The Date object
Page 232 and 233: Javascript Return Value Returns the
Page 234 and 235: Javascript Date Methods Here is a l
Page 236 and 237: Javascript universal time. setUTCMo
Page 238 and 239: Javascript Syntax Its syntax is as
Page 240 and 241: Javascript Example Try the followin
Page 242 and 243: Javascript var dt = new Date(); d
Page 244 and 245: Javascript getMonth() : 11 getSecon
Page 250 and 251: Javascript Output getUTCHours() :
Page 254 and 255: 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 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 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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