JavaScript - Check For Space/whitespace In String

I have thought about using the standard email checker pattern but we have had problems in the past so looking to check if the string follows these simple rules.

has no spaces, has a character/s at the start followed by an @ then has a character/s followed by a (dot) then another character/s
i.e
a@a.a
aa@aa.aa
aaa@aaaaaaaaa.aaa

i am not sure how the standard pattern works but feel that it may be to complex which causes some email address to fail.

Function findsometing()
(


var myString = 'results' + '<BR>'

for (var initiator, test condition,incrementor.)
{
if (.....)
{
myString ='some quote';
}
else if (.....)
{
myString += something + '<br>'
}
else if (....... )
{
myString += something + '<br>'
}
else
{
myString += '';
}
}

displayMessage(myString)
)


I am a complete newbie to javascript and programming, so excuse any faux pas, but I want to check the myString variable after all the loops in the for loop statement have been completed. For example if nothing was added to the var myString after the completeion of the for loop, i want to display a message that no results found. i tried various attempts of an if statement along lines of

}
}

if (myString = 'results') ....i also tried if myString= ('results' + '<BR>')
{
displayMessage('no results found')
}
else
{
displayMessage(myString)
}
)

Any pointers as to where i am going wrong?

Hi all, are there any tags i can use that will tell the parser somehow to ignore whitespace in the HTML section? The html and jave script is pasted into a custom page widget that can interpret the code, the problem is that my indentation and general coding formatting as i am writing it in my editor is also somehow being translated in the rendering - it seems mostly to be the linebreaks, in fact i would say it is only the line breaks, so the layout is appearing spread across too many lines for example, instead of neat and tight together, which is what i see in a browser. I realise this is probably the parser implementation at the application end, but can i get around this directly myself?
I cannot use xml or xslt to get around this, i can only write direct html or java into this custom widget.

Hi, I currently have a <p> where it changes to a textarea when a button is clicked

How do I preserve the whitespace when saving that text to a database and displaying back to a <p>?

On this webpage
http://www.corkdiscos.com/testimonials.html

i have a like button.
when a user clicks like a comment box appears.
when i unlike the button the comment box disappears

this is ok but when a user has already liked the facebook page and comes to my webpage
the comment box does not show.

so im looking for a piece of javascript to check if a user has like the button on my page and if so to show the comment box.

please check my source code of the website http://www.corkdiscos.com/testimonials.html to see what i have so far.

any help would be greatly appreciated

Hi guys.

I'm working a bunch of pre existing code on a CMS. Just after a quick fix. Doing a show/hide thing on a particular div somewhere on the page depending if a checkbox is ticked or not.

Currently there is 3 checkboxes that are dynamically added through the CMS.

Here's simplified version of the form:

Code:

<form id="simplesearch" name="simplesearch">
<input type="checkbox"   onclick='showhidefield(this.value)' name="meta_data_array_search_criteria[custom_profile_type][]" value="5"  class="input-checkboxes" />
<input type="checkbox"   onclick='showhidefield(this.value)' name="meta_data_array_search_criteria[custom_profile_type][]" value="4"  class="input-checkboxes" />
</form>

And here's the javascript I was playing with.
Code:

function showhidefield(id)
{
   if(document.simplesearch.meta_data_array_search_criteria[custom_profile_type][''].checked) {
      document.getElementById("profile_fields_wrapper_" + id).style.visibility = "visible";
   }
   else
   {
      document.getElementById("profile_fields_wrapper_" + id).style.visibility = "hidden";
   }
}

Problem I'm having is how do i do a check to see if those checkboxes are checked in the javascript with those name arrays? How do i separate them? 'm guessing I have to loop through them or something?Hopefully that make senses - it's late here and I'm losing the plot Any pointers would be gratefully welcomed

Hi All,

Firstly, apologies if this is already posted somewhere on the site. I did do a search of the forum, but could only find solutions for things link Perl scripts etc.

What I have is a file upload input (as part of a larger form) and I want to get some javascript that will replace spaces in a filename with another character, such as an underscore or dash. If possible, I would also like to be able to replace commas with an underscore or dash.

Hope someone here can help or point me to the right place!

Neil

Hello,

Currently, i am working on a website. I need that when the data comes from ajax in the div or span tag, it should take space by moving down the data already present there without overwriting it.

But it doesnot happens. When i get data through ajax, then it overwirtes the previous data which was already present there and doesnot move the previous data downwards.


Any help plz

I have a 3 textareas that when the user presses the spacebar I would like for the code to execute a TAB to move between them instead. My code works if I make the replacement keycode an number or letter but it wont work if I use TAB. The browser is IE. Thank you for any help you can give.

<script type="text/javascript">
function keycode(e) {
if(e.keyCode==32) {return (e.keyCode=9);}
}
</script>
</head>
<body>
<form>

<input name="DefectNumber" id="DefectNumber" type="text" onkeypress="return keycode(event);">
<input name="DefectNumber2" id="DefectNumber2" type="text" onkeypress="return keycode(event);">
<input name="DefectNumber3" id="DefectNumber3" type="text" onkeypress="return keycode(event);">
</form>
</body>

If you look on the top right corner of the site I'm working on, the +1 button doesn't line up with the other social media icons. Why?

http://customwovenlabels.com/

Hi all,

I have a script that validates a postcode, including checking that the 4th character from the end of the postcode is a space. To save sending you back to the postcode textbox to correct the error, how can I automatically force a space at the 4th character position from the end of the postcode? ie,

CM12JB is wrong. Need to change it to CM1 2JB.

Any ideas?

Gary

Right now when someone clicks on my listbox I immediately do an update on the form to populate the selected item.

Is there a way to detect if a user has clicked on some white area of a list box? If my list is sized 8 items but the list only has 4 items, if the user clicks near the bottom of the list where there is no item to select, can I detect that? Currently I get the form updating even if I click on the white area of the list and I'd like the form to update only if I actually click on an item in the list.

Thanks

Hello,
I am trying to create some javascript that will create a popup and the popup itself is just an image. But since I want the image to take up the entire window i create the html in a variable to hold the image. For some reason I always get white space on the right. I already have css built into the html variable to take out padding and margins and I even specify the size(sized exactly to the image) when doing window.open. I have not been able to solve this in a couple of days and have been trying alot of different solutions with no work. Any help is appreciated, here is the code:
Code:

function get_radio_value()
{
var wrong = "<html><head><style type='text/css'>body {margin: 0; padding:0; border:0;}</style>\
<title>Incorrect, try again!</title></head><body><bgsound src='Plbt.wav'>\
<a href='javascript:window.close()'><img src='wrong.jpg'></a></body></html>";
var right = "<html><head><style type='text/css'>body {margin: 0}</style>\
<title>You are Correct!</title></head><body>\
<a href='javascript:window.close()'><img src='right.jpg'></a></body></html>";
for (var i=0; i < document.question.mquestion.length; i++)
{
if (document.question.mquestion[i].checked)
{
var rad_val = document.question.mquestion[i].value;
if (rad_val != "b")
{ var popup = window.open('','',"resizeable=no,scrollbars=no,location=no,menubar=no,toolbar=no,width=221,height=112");
popup.document.write(wrong);
pops.document.close();
}
else
{ 	var popup = window.open("","window","resizeable,scrollbars=no,width=221,height=112");
popup.document.write(right);
pops.document.close();
}
}
}
}
</script>

I cannot get an address entered on a form to validate unless I leave out the space between the number and the street name. The second line of the function shows the characters that it will accept. Every way I tried to add a space to that list doesn't work.

function isAlphanumeric(elem, helperMsg){
var alphaExp = /^[0-9a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}

(This is from a tutorial I'm studying to learn how to do validation. It seems strange that the folks who put this thing together don't know there's a space between the house number and the street name. Or does that only apply to my street?)

Any ideas,
J