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JavaScript - Function Operator Question
Hello I have a question which has been bugging me for a while now so have decided to ask it on CF.
In PHP you can use the '&' symbol as a function operator for example like so. PHP Code: function demoFunc(&$output='') { for($i=1;$i<count(func_get_args());$i++) { $output .= ' '.func_get_arg($i); } $output = trim($output); } As you can see the '&' symbol was used in the argument section to allow the function to be used like this demoFunc($output,'hello','world'); print $output; My question is how can I do this in JavaScript to do the same thing like use the variable used in the function argument section and use it like it would be used in PHP? Thank you - DJCMBear Similar TutorialsI'm trying to not allow my users to enter in n/a in my form ex... "N/A" "n/A" "na" My code trips the alert every time no matter what is entered in the cell... Why is it doing that? Code: function appliance() {
if (document.ComplianceForm.Appliance.value=="n/a" || "N/A" || "n/A" || "N/a") {
alert("You cannot enter any variation of n/a in this cell.")
}
else {
return false;
};
}
I'm still learning js core using Flanagan's 5th ed. so please bear with me; is the if ("ignore" in arguments.callee) return; below valid or a typeo? Thanks J. Code: function inspect(inspector, title) {
var expression, result;
// You can use a breakpoint to turn off subsequent breakpoints by
// creating a property named "ignore" on this function.
if ("ignore" in arguments.callee) return;
.......
i was using my JavaScript console as a calculator, and i accidentally used "^" for exponents. the statement did not return a syntax error, but a number, after doing some more ^ operations i can't see the relation between the numbers i use and the answer it gives me. I read somewhere (I think from Douglas Crockford) that void is a completely useless operator. What is its actual purpose? Is there anything it's good for? I see lots of javascript:void(0) hyperlinks all over the place. From what I gather, it just disables the link's default behavior...buy why not just make the href="#" or return false from an onClick handler? Can anyone enlighten me? Hi folks, Any suggestions on how you might achieve the following without using eval()? I've come up a bit short Code: function addOrSubtract(operator) {
var a = 10;
var b = 5;
var answer = eval(a + operator + b);
alert(answer);
}
addOrSubtract('+') // alerts 15
addOrSubtract('-') // alerts 5
Would help me tidy up some code a lot thanks. Code: this.delete = function(obj)
{
..
Is that it ? I can't have delete ? Or can this be written in some other way, including delete ? I have a dice simulator. Basically, a user enters how many sides they want on their die, and then I digitally roll 2 of them. And produce the output in a document.writeln. I think I'm having trouble with the this.sides in the constructor function (in the head section). Also, I'm getting a syntax error in Safari : 25TypeError: 'null' is not an object (evaluating 'element.value') Am I not suppose to put the variable in the constructor function? Any help would be appreciated. <head> var element = document.getElementById("number"); var sides = element.value; function Die( ) { this.sides = sides; this.roll = function( ) { return parseInt((Math.random( ) * 1000) % this.sides) + 1; } } </script> </head> <body> <h1>Adam's Dice Rolling Game!</h1><br/> <form action="" method="post"> <p> <input type="text" name="number" id="number"/> </p> <p> <input type="button" value="Roll the dice!" id="roll_me"/> </p> </form> <script type="text/javascript"> var d = new Die( ); d.sides = sides; var rolled_value = d.roll( ); var r1 = document.getElementById( "roll_me" ); r1.onclick = function Die () { document.writeln ( d.roll () ); } </script> $.fn.superfish = function(op) { } So I see here that a function is being declared and the name of the function is '$.fn.superfish'. Is there any special meaning at all behind the $ in this situation? Here is my webpage (don't laugh!). If you click on Espanol it translates the page to Spanish. English is set up differently and it works too. Please tell me why clicking Spanish works but not French, Portuguese, etc. Code: <body>
<p align="center">
<b id='Spanish1'><b id='French1'><b id='Portuguese1'><b id='German1'><b id='Danish1'><b id='Dutch1'><b id='Finnish1'><b id='Swedish1'><b id='Norwegian1'></b>Change Language:</b></b></b></b></b></b></b></b>
<input type='button' onclick='TranslateToSpanish()' value='Espanol' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToFrench()' value='Francais' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToPortuguese()' value='Portuguese' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToGerman()' value='Deutsch' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToDanish()' value='Dansk' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToDutch()' value='Nederlands' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToFinnish()' value='Suomi' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToSwedish()' value='Svensk' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type='button' onclick='TranslateToNorwegian()' value='Norske' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<a href='http://www.luxe-bux.com/the-link-of-the-same-page-viewer-is-on-so-it-will-refresh-the-page-back-to-english'><input type='button' value='English' style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011"></a>
<div class="header" onclick="location.href='http://www.luxe-bux.com';" style="cursor: pointer">
<img src="http://i770.photobucket.com/albums/xx344/colorscolors123/0546d64a.png">
Luxe Bux <font size="2"><b id='Spanish2'><b id='French2'><b id='Portuguese2'><b id='German2'><b id='Danish2'><b id='Dutch2'><b id='Finnish2'><b id='Swedish2'><b id='Norwegian2'></b>Luxuries For Less!</b></b></b></b></b></b></b></b></b><br>.</font></div>
<div class="test">
<div class="allthestuff">
<h1><!-- Atomz HTML for Search -->
<form method="get" action="http://search.atomz.com/search/" rel="nofollow" target="foo" onSubmit="window.open('', 'foo', 'width=1200,height=500,status=yes,resizable=yes,scrollbars=yes')">
<input type="hidden" name="sp_a" value="sp1004432f">
<p align="center"><font color=ffffff size=3><b id='Spanish3'><b id='French3'><b id='Portuguese3'><b id='German3'><b id='Danish3'><b id='Dutch3'><b id='Finnish3'><b id='Swedish3'><b id='Norwegian3'>Search Luxe Bux:</b></b></b></b></b></b></b></b></b></font>
<input size="30" name="sp_q" style="background-color: #cb672d; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011">
<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Find it!"><b id='Spanish4'></b><b id='French4'></b>
<input type="hidden" name="sp_p" value="all">
<input type="hidden" name="sp_f" value="UTF-8"></p>
</form>
</h1>
<div class="container">
<ul>
<li><a class="nav" href="http://www.luxe-bux.com"><b class="ShopNow"><b id='Spanish5'><b id='French5'><b id='Portuguese5'><b id='German5'><b id='Danish5'><b id='Dutch5'><b id='Finnish5'><b id='Swedish5'><b id='Norwegian5'>Shop Now!</b></b></b></b></b></b></b></b></b></b></a></li>
<li><a class="nav" href="http://www.luxe-bux.com"><b id='Spanish6'><b id='French6'><b id='Portuguese6'><b id='German6'><b id='Danish6'><b id='Dutch6'><b id='Finnish6'><b id='Swedish6'><b id='Norwegian6'>Reviews of Luxe Bux</b></b></b></b></b></b></b></b></b></a></li>
<li><a class="nav" href="http://www.luxe-bux.com"><b id='Spanish7'><b id='French7'><b id='Portuguese7'><b id='German7'><b id='Danish7'><b id='Dutch7'><b id='Finnish7'><b id='Swedish7'><b id='Norwegian7'>FAQ/Return Policy/More Info</b></b></b></b></b></b></b></b></b></a></li>
<li><a class="nav" href="http://www.luxe-bux.com"><b id='Spanish8'><b id='French8'><b id='Portuguese8'><b id='German8'><b id='Danish8'><b id='Dutch8'><b id='Finnish8'><b id='Swedish8'><b id='Norwegian8'>Contact</b></b></b></b></b></b></b></b></b></a></li>
</ul>
</div>
<br>
<div class="IdeaColor">
<div class="marginspacer">
<p><img alt="small-euro-currency-sign.jpg" style="padding: 15px; border: 2px solid #000000;" src="http://www.luxebux.com/sitebuildercontent/sitebuilderpictures/.pond/desaturated-and-resized-only.jpg.w180h269.jpg" align="right" vspace="0" hspace="5"></p>
<p>
<b id='Spanish9'><b id='French9'><b id='Portuguese9'><b id='German9'><b id='Danish9'><b id='Dutch9'><b id='Finnish9'><b id='Swedish9'><b id='Norwegian9'>
<font size="4">Here's what our customers are saying...<br><br></font><br /><font size="3">
"THANK YOU VERY MUCH NICE DEALING WITH"<br>
"Exceptional service overall and great care in packaging! I will buy again! A++"<br>
"Exactly as advertised! Fast shipping(always takes longer to Canada) A+" <br>
"great online sellers. highly recomended! will buy from again"<br>
"Arrived in record time and packaged well. Thanks"<br>
"Quick"<br>
"Great service, very fast shipping. I will definitely buy from them again"<br>
"Arrived quickly as described!!"<br><br><br><br><br><br></p>
</b></b></b></b></b></b></b></b></b>
</div></div>
<table height="100"><tr><td></td></tr></table>
<table width=100% height=20px bgcolor="#f5e9c3">
<tr><td></td></tr>
</table>
<script type="text/javascript">
function TranslateToSpanish()
{
document.getElementById('Spanish1').innerHTML = 'Lengua del cambio:';
document.getElementById('Spanish2').innerHTML = 'Lujos para menos!';
document.getElementById('Spanish3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Spanish4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Spanish5').innerHTML = 'Tienda ahora!';
document.getElementById('Spanish6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Spanish7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Spanish8').innerHTML = 'Contacto';
document.getElementById('Spanish9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>';
}
</script>
<script type="text/javascript">
function TranslateToFrench()
{
document.getElementById('French1').innerHTML = 'Lengua del cambio:';
document.getElementById('French2').innerHTML = 'Lujos para menos!';
document.getElementById('French3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('French4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('French5').innerHTML = 'Tienda ahora!';
document.getElementById('French6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('French7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('French8').innerHTML = 'Contacto';
document.getElementById('French9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToPortuguese()
{
document.getElementById('Portuguese1').innerHTML = 'Lengua del cambio:';
document.getElementById('Portuguese2').innerHTML = 'Lujos para menos!';
document.getElementById('Portuguese3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Portuguese4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Portuguese5').innerHTML = 'Tienda ahora!';
document.getElementById('Portuguese6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Portuguese7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Portuguese8').innerHTML = 'Contacto';
document.getElementById('Portuguese9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToGerman()
{
document.getElementById('German1').innerHTML = 'Lengua del cambio:';
document.getElementById('German2').innerHTML = 'Lujos para menos!';
document.getElementById('German3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('German4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('German5').innerHTML = 'Tienda ahora!';
document.getElementById('German6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('German7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('German8').innerHTML = 'Contacto';
document.getElementById('German9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToDanish()
{
document.getElementById('Danish1').innerHTML = 'Lengua del cambio:';
document.getElementById('Danish2').innerHTML = 'Lujos para menos!';
document.getElementById('Danish3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Danish4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Danish5').innerHTML = 'Tienda ahora!';
document.getElementById('Danish6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Danish7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Danish8').innerHTML = 'Contacto';
document.getElementById('Danish9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToDutch()
{
document.getElementById('Dutch1').innerHTML = 'Lengua del cambio:';
document.getElementById('Dutch2').innerHTML = 'Lujos para menos!';
document.getElementById('Dutch3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Dutch4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Dutch5').innerHTML = 'Tienda ahora!';
document.getElementById('Dutch6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Dutch7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Dutch8').innerHTML = 'Contacto';
document.getElementById('Dutch9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToFinnish()
{
document.getElementById('Finnish1').innerHTML = 'Lengua del cambio:';
document.getElementById('Finnish2').innerHTML = 'Lujos para menos!';
document.getElementById('Finnish3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Finnish4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Finnish5').innerHTML = 'Tienda ahora!';
document.getElementById('Finnish6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Finnish7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Finnish8').innerHTML = 'Contacto';
document.getElementById('Finnish9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToSwedish()
{
document.getElementById('Swedish1').innerHTML = 'Lengua del cambio:';
document.getElementById('Swedish2').innerHTML = 'Lujos para menos!';
document.getElementById('Swedish3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Swedish4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Swedish5').innerHTML = 'Tienda ahora!';
document.getElementById('Swedish6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Swedish7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Swedish8').innerHTML = 'Contacto';
document.getElementById('Swedish9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
<script type="text/javascript">
function TranslateToNorwegian()
{
document.getElementById('Norwegian1').innerHTML = 'Lengua del cambio:';
document.getElementById('Norwegian2').innerHTML = 'Lujos para menos!';
document.getElementById('Norwegian3').innerHTML = 'Busqueda Luxe Bux:';
document.getElementById('Norwegian4').innerHTML = '<input type="submit" style="background-color: #794011; color: #ffffff; border-width: thin; border-style: dotted; border-color: 794011" value="Encuentrelo!">';
document.getElementById('Norwegian5').innerHTML = 'Tienda ahora!';
document.getElementById('Norwegian6').innerHTML = 'Revisiones de Luxe Bux';
document.getElementById('Norwegian7').innerHTML = 'Politica de FAQ/Return/mas Info';
document.getElementById('Norwegian8').innerHTML = 'Contacto';
document.getElementById('Norwegian9').innerHTML = '<font size="4">Aqui es lo que estan diciendo nuestros clientes...<br><br></font><br /><font size="3">"GRACIAS EL TRATAR MUCHO AGRADABLE DE"<br>"Cuidado total y grande del servicio excepcional en el empaquetado! Comprare otra vez!"<br>"Exactamente segun lo anunciado! Envio rapido (lleva siempre mas de largo Canada)"<br>"grandes vendedores en linea. recomendado altamente! comprara de otra vez"<br>"Llegado en tiempo de registro y empaquetado bien. Grazias"<br>"Aprisa"<br>"Gran servicio, envio muy rapido. Comprare definitivamente de ellos otra vez"<br>"Llegado rapidamente segun lo descrito!!"<br><br><br><br><br><br></p>
}
</script>
</body></html>
anotherVar should be -1 if there are no matches, but it doesn't seem to work
PHP Code: var string = "abadafa"; var matches = string.match(/a/gi); //doesn't work with /z/ for example var anotherVar = matches.length || -1; The default operator should return the second value if the first is null or false, and according to PHP Code: try { alert(matches.length); } catch (e){ alert(e); //alerts null } it's null. fyi: http://helephant.com/2008/12/javascr...ault-operator/ What's going on? If number is more than 24 digits, modulus operator is not giving correct output here attached sample code [code]<script type="text/javascript"> var a=10000000000000000000000.0; var b=10.0; var c=a % b; alert("c"+c); </script>[code] please tel me solution Hi there I am wondering if anyone can tell me the best way to access the functions of an Iframe from the parent of the frame. I have tried Code: var myFrame = document.getElementById('gigmap');
myFrame.flashMouseover(gid);
and Code: window.frames['gigmap'].document.flashMouseover(gid); though these didn't work. Basically this is what i want: Mainpage function a(id) receives flash variable 'id' then sends variable 'number' to iframe function b(id) . The part in red is where I have the problem. In case you are wondering what I am doing is sending an id of a gig in my database when its button rolled over in a flash swf to a Google Map (using Google maps javascript API inside the Iframe 'gigmap) and make the corresponding marker on the map jump. I have it so the iframed map markers send to the flash file on rollover though not the other way round...yet! I've been going through this great tutorial on how to implement a type-ahead feature on a text field and there's something which hopefully you guys can explain. On the third page there is this function. Code: AutoSuggestControl.prototype.init = function () {
var oThis = this;
this.textbox.onkeyup = function (oEvent) {
if (!oEvent) {
oEvent = window.event;
}
oThis.handleKeyUp(oEvent);
};
};
What I don't understand is this line: this.textbox.onkeyup = function (oEvent) { I know about anonymous functions, but I don't know where the value for the parameter oEvent is going to come from. Can someone explain this? Thanks! :) Hi! This is probably a classic inheritance thing... I have two objects, C1 and C2. Both contains a callback method named 'callback'. Now, if I let C2 inherit from C1, then C1's 'callback' gets overridden by C2's. The problem is I still want C1's methods to access their own 'callback' method. Is this possible, and is it "valid"? Am I headed down disaster lane here? Should I re-think and refactor? Example: Code: function C1 () {};
C1.prototype.callback = function () {
console.log('c1 called');
};
C1.prototype.call = function () {
//do stuff
this.callback();
};
function C2 () {};
C2.prototype = new C1();
C2.prototype.callback = function () {
console.log('c2 called');
};
var obj = new C2();
obj.call();
Output: c2 called Regards Don Is it possible to have an input that points to some other function? For example: Code: function someFunction() {
alert('It worked.');
}
function doAnotherFunction(doIt, otherFunction) {
if (doIt == true) {
otherFunction();
}
}
<input type="button" value="test" onClick="doAnotherFunction(true, someFunction());">
Or would I need a switch statement and have all the various functions hardcoded? this is my javascript code: Code: var aaa, aab; aaa = choo.chooserver0.checked; aab = choo.chooserver1.checked; k=(aaa==true)?0:(aab==true)?1:(aaa=true&&aab==true)? 'b2' : false ; now when the checkbox with id chooserver0 is checked, it sets k's value to 0, and when checkbox with id chooserver1 is checked it sets its value to 1, but when both are checked it must set value to b2, but it sets value to 0, why? and when i write it as: Code: var aaa, aab; aaa = choo.chooserver0.checked; aab = choo.chooserver1.checked; k=(aaa=true&&aab==true)? 'b2' :(aaa==true)?0:(aab==true)?1: false ; when box 1 is checked, it sets k= false, when box2 is checked it sets k= 'b2' and when both are checked it sets k = 'b2'... why is code doing so? which is the real difference between: <script> alert('hello'); </script> and <script> function hi() {alert('hello');} </script> thanks in advance makerjoe Hi, I'm having some issues turning this "Please Wait"/Disabled button into a function. Code: <input type="submit" value="Submit Form" onClick="this.disabled = 'true'; this.value='Please wait...';" /> Code: function pleasewait()
{
this.disabled = 'true';
this.value='Please wait..'
}
<input type="submit" value="Submit Form" onClick="pleasewait();" />
Thanks much Hi, I am facing a problem in passing replace() function as an argument in user defined java function, can any one help me how to resolve it? intention is to pass a file path to my user defined function, but before passing the path i want to replace the character '\' to '\\' I am posting my javascript function he <a href="#" onclick="OpenDocPreview('<%# Eval("PATH")%>'.replace(/\\/g,"\\\\"), '<%# Eval("Filename")%>')"><%# Eval("DocTitle") %></a> function OpenDocPreview(url, docname) { alert('message from search base : ' + url + ' ' + docname); } thank you, |
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