javascript_tutorial

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Javascript Examples Following examples explain more about matching characters. Expression [^a-zA-Z] p.p ^.{2}$ (.*) p(hp)* Description It matches any string not containing any of the characters ranging from a through z and A through Z. It matches any string containing p, followed by any character, in turn followed by another p. It matches any string containing exactly two characters. It matches any string enclosed within and . It matches any string containing a p followed by zero or more instances of the sequence hp. Literal Characters Character Description Alphanumeric Itself \0 The NUL character (\u0000) \t Tab (\u0009) \n Newline (\u000A) \v Vertical tab (\u000B) \f Form feed (\u000C) \r Carriage return (\u000D) \xnn \uxxxx The Latin character specified by the hexadecimal number nn; for example, \x0A is the same as \n The Unicode character specified by the hexadecimal number xxxx; for example, \u0009 is the same as \t 310
Javascript \cX The control character ^X; for example, \cJ is equivalent to the newline character \n Metacharacters A metacharacter is simply an alphabetical character preceded by a backslash that acts to give the combination a special meaning. For instance, you can search for a large sum of money using the '\d' metacharacter: /([\d]+)000/. Here \d will search for any string of numerical character. The following table lists a set of metacharacters which can be used in PERL Style Regular Expressions. Character Description . a single character \s a whitespace character (space, tab, newline) \S non-whitespace character \d a digit (0-9) \D a non-digit \w a word character (a-z, A-Z, 0-9, _) \W a non-word character [\b] [aeiou] [^aeiou] (foo|bar|baz) a literal backspace (special case). matches a single character in the given set matches a single character outside the given set matches any of the alternatives specified Modifiers Several modifiers are available that can simplify the way you work with regexps, like case sensitivity, searching in multiple lines, etc. Modifier i Description Performs case-insensitive matching. 311
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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 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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Page 270 and 271: Javascript Example Try the followin
Page 272 and 273: Javascript var dt = new Date(1993,
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Page 284 and 285: Javascript minutes : An integer
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Page 290 and 291: Javascript Property Value is : 0.43
Page 292 and 293: Javascript JavaScript Math SQRT2 P
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Page 296 and 297: Javascript First Test Value : 3.141
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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 348 and 349: Javascript Specifies the loading st
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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
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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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