Word Existence
Aug 23, 2001How do I check if a certain word exists in a text box? For example, if I set the word to be found to "word1", if the text box is "This is word1", and alert would come up saying that "word1" was found.
View 2 Replies
ADVERTISEMENT
Get The Search Word - Find A Word Inside A String
Jun 15, 2011I am trying to find a word inside a string.the search his going fine but I need to know which word has been found in the string.
Code:
Code:
Now in the string only one value can be found at a time.So its either a1 or a2 or so on.....
How To Check URL Existence ?
Aug 24, 2006I have the following HTML code which is doing a GET to a page, say
MyUrl.aspx :
<body>
<form name="form1" method="get" action="MyUrl.aspx" id="form1">
<input type="hidden" name="ClickedElement" id="Messenger" />
</form>
</body>
where the the Submit() is done within a javascript function invoked at
onclick on some element.
My question is: How can I prevent form submission when MyUrl.aspx is
not available? The javascript function is:
function Clicked(MyControl)
{
var _CellContent = document.getElementById("Messenger");
_CellContent.value = MyControl.id;
document.form1.submit();
Possible To Check Existence Of XML?
Sep 25, 2006Is there any possibility to check the existence of XML?
View 2 Replies View RelatedValidating Existence Of XML Tag ?
Apr 13, 2011I am creating this Javascript/XML HTA that is basically a project tracker. I recently added some new fields in the form that are written to the XML file for the project being tracked. This makes the files neither backwards compatible if I use it in a previous version nor forward compatible for future versions. This means if a user is using version 1, I create version 2, he wants to import his old tasks to Version 2, it throws an error. For example if I have a <status> element written in the newest version, but no <status> in the previous, I can no longer use that projects XML file in a previous version.
I tried to use the following code to validate existence of the tag and assign whatever outcome as the variable to write, but it's not working. Theres a few different ways I tried.
1st Way:
Code:
2nd Way:
Code:
3rd Way:
Code:
Here's the XML file for reference.
Code:
Existence Of Several Global Variables
Jul 20, 2005Suppose I have global variables: x1, x2, x3
and I have a function that needs to assign a value to a new global variable
x4
something like
function foo ()
{
count = 0;
do {
count ++
varname = 'x'+ count
} while (globalExists (varname)
eval ( varname + ' = "I am new in the x-series" ' )
}
how would the function globalExists () be implemented ?
Checking Existence Of An Element?
Jul 20, 2005Is it possible to check for the existence of an element? I have a dynamic
page which may or may not have a <div> holding a bunch of thumbnails, and I
want a function to check for the existence of the <div>. Doing:
blah = getElementById("thumbnails");
Generates an error.... I was hoping it would just return false or
something... Is there a way of doing this?
Toggle Not Just Visibility, But Existence?
Feb 19, 2009I'd like to be able to toggle the existence of a DIV using the onclick attribute.
HTML Code:
<input type="radio" value="1" checked="checked"
onclick="document.getElementById('div').style.visibility='hidden';"> 1
[code]....
Testing For Existence Of Element?
Apr 13, 2010I have the following code:
Code:
<script language="javascript">
<!--
// Max number of items to show/hide
[Code].....
Which is designed to hide all but one of a group of DIVs with consecutive IDs in the form "listings_stations_<number>". The problem is, I won't know how many of these DIVS there will be. I know a maximum possible number though.
The script as-is works, but obviously throws up errors trying to get handles to non-existent elements/objects. How can I check an element exists before getting and setting style properties for it? I'd like a solution that works for all three browser-types the script currently works with.
Check An External Url Existence?
Sep 22, 2011I need to check the whether an external url like http://www.somesite.com exists or not using javascript.
I have a ajax method for it,
function checkUrl(url) {
var xmlhttp=false;
if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
[Code]...
But is not successful for finding existence of external urls.
Test For Existence Of Dynamic Variable
Mar 26, 2006I am using Javascript to add rows to tables, etc. in a function I am
calling. I pass the function the ID of the div, and what I want in the
rows, and it will add rows to a table in the div.
The problem is I need to test for the existence of the table - and if
the variable or object doesn't exist already my code errors -
PLEASE REMEMBER - I don't know the name of the variable or object I am
testing the existance for - it is created dynamically based on the
divID. So when I test for this object or variable the test has to be
for a dynamically created object - Code:
Check For The Existence Of A Variable With A Calculated Name?
Jan 29, 2009I'm processing a form with numbered fields, but I don't know how many fields there are. Might be 1, might be 20. So I'm iterating through 1-20 and trying the following test:
for(i=1; i<=20; i++) {
if(typeof(eval('document.edit_orderitem_form.field_'+i+'.value')) != 'undefined') {
[doing stuff with the form field here]
}
}
The script quits on that line with "Undefined value" showing up in Safari's error console. I just can't figure out how to eval() the name of a field when it may or may not exist.
Display Words In Red And Green In Such A Way That That Fist Word Should Be Red, 2nd Word Should Be Green?
Dec 24, 2010I have a long paragraph and I have been asked to display words in red and green in such a way that that fist word should be red, 2nd word should be green, 3rd word should be red and 4th word should be green and so on. For example: this is just a sample.
View 3 Replies View RelatedTesting Image Existence With Side-effects
Oct 5, 2005I'm trying to write a function to determine whether or not an image exists.
Most people recommend setting the onload event handler. That works like a
charm except that side-effective actions seem to be impossible. I can, as
nearly as I can tell, run alert and opera.postError (I test on IE, firefox,
and opera by the way). I've tried using the 'this' while in the event
handler, setting this.name, test.name, window.document.getElementById(test's
id).name. I just can't seem to find any means of using side effects inside
the event handler.
Below are several examples of things I've tried so far:
JQuery :: Checking For The Existence Of An Appended Object?
Sep 27, 2011Here's what I want to happen with the above: "if txComments is there don't append it again"owever when I run this code, it appends a new "txComments" every time the code is triggered.
View 2 Replies View RelatedJQuery :: Checking For Existence Of A <td> Class Name In Dynamically Created Table?
Feb 27, 2010checks my table (previously created by "click handler") "td" elements for not existance of a paticular class name.
View 1 Replies View RelatedDisable/enable Submit Button Based On Existence Of Validation Errors?
May 1, 2010Would anyone care to post your favorite script for disabling the submit button on a form when there are input errors, and reenabling when all errors are resolved? I'd be curious what the different approaches are to this. I looked through my various SitePoint javascript books and surprisingly didn't find an answer to this scenario specifically.The behavior I'm trying to achieve (most efficiently) is having a form start out with the submit button enabled, but if there is a validation error, such as a required field being left blank on blur, the submit button is disabled. It's easy then to re-enable it when the user fills in that field, but harder to get the script to check and see if there are any other lingering errors before going ahead and enabling it.
My natural inclination would be to just keep a count of errors that increments and decrements when errors occur and are resolved. Then the script would check to see that the error count is 0 before re-enabling the submit button. It seemed easy, but I think I'm getting mixed up somewhere in conflicts of variable scope, and it's not turning out right.A google search rendered an example where someone was using a string variable to store errors, concatenating and replacing data to the string as errors were logged/resolved.
Pass Text From One Select Box To Another Select Box Using The For Loop To Check The Existence Of An Item But It Is Not Working?
Aug 28, 2010i am trying to pass text from one select box to another select box. The logic is if 10 are added, no more passing must happen. Also if an item is already added, it mustn't be added again.I am using the for loop to check the existence of an item but it is not working: what am i doing wrong?
Code:
function PassSelectValues(){
//pass values from select boxes to select boxes
var counter;[code]....
why isn't counter incrementing at all? The alert message box does appear saying item exists but the item gets added anyway.
Get Word From Given (x,y)
Mar 13, 2010ielementfrompoint () gets an element at a given position (x,y). how can I get a single word (if it exists) from a given position? to sum up i need this: f(x,y)=word ( or null - in case there is no word). x, y is given NOT obtained with some mouseover event.
View 1 Replies View RelatedGet Word Under Cursor?
Jul 23, 2005Assume we have this html:
<span>the quick brown fox</span>
and the mouse is hovering over the word "fox". Using javascript, is it possible to determine the word under the mouse *without* introducing additional elements such as an anchor?
Word Counter
Jul 20, 2005I have what seems to
be a robust, working word counter script. I post it here to benefit
others that might want this in the future and so that if I ever lose
my copy I can come back here to find it :) Some other scripts that I
used for inspiration failed when confronted with whitespace before the
string or miscalculated when encountering linefeeds and other
non-space spaces, so I made mine better. Definition of words for this
exercise is contiguous groups of characters separated by whitespace. Code:
Word Filter
Aug 9, 2002This JavaScript is a "Word Filter". It is a type of form validator. When the user submits some text, the validator will check the text for words that has to be filtered.
The words that have to be filtered must be added to the array swear_words_arr. When the user types the text and hits the submit button, if the text contains any word that is present in the array swear_words_arr, the form will not be submitted.
The script can be used for validation of swear words etc.
<html>
<head>
<title>Word Filter</title>
<!--BEGIN WORD FILTER JAVASCRIPT-->
<script language="JavaScript1.2">
// Word Filter
// (c) 2002 Premshree Pillai
// http://www.qiksearch.com
// http://javascript.qik.cjb.net
var swear_words_arr=new Array("bloody","war","terror");
var swear_alert_arr=new Array;
var swear_alert_count=0;
function reset_alert_count()
{
swear_alert_count=0;
}
function validate_user_text()
{
reset_alert_count();
var compare_text=document.form1.user_text.value;
for(var i=0; i<swear_words_arr.length; i++)
{
for(var j=0; j<(compare_text.length); j++)
{
if(swear_words_arr[i]==compare_text.substring(j,(j+swear_words_arr[i].length)).toLowerCase())
{
swear_alert_arr[swear_alert_count]=compare_text.substring(j,(j+swear_words_arr[i].length));
swear_alert_count++;
}
}
}
var alert_text="";
for(var k=1; k<=swear_alert_count; k++)
{
alert_text+="
" + "(" + k + ") " + swear_alert_arr[k-1];
}
if(swear_alert_count>0)
{
alert("The form cannot be submitted.
The following illegal words were found:
_______________________________
" + alert_text + "
_______________________________");
document.form1.user_text.select();
}
else
{
document.form1.submit();
}
}
function select_area()
{
document.form1.user_text.select();
}
window.onload=reset_alert_count;
</script>
<!--BEGIN WORD FILTER JAVASCRIPT-->
</head>
<body bgcolor="#FFFFFF">
<!--BEGIN FORM-->
<table cellpadding="10" style="border:2 solid #FF9900" width="200" align="center"><tr><td>
<form name="form1" method="post" action="post.cgi">
<center><font face="Times New Roman" size="6pt" color="#606060"><b><i>Word Filter</i></b></font></center>
<table><tr><td></td></tr></table>
<textarea rows="3" cols="40" name="user_text" style="border:2 solid #808080; font-family:verdana,arial,helvetica; font-weight:normal; font-size:10pt" onclick="select_area()">Enter your text here...</textarea>
<table><tr><td></td></tr></table>
<center><input type="button" style="background:#EFEFEF; border:2 solid #808080; width:100%; cursor:pointer" value="Submit" onclick="validate_user_text();"></center>
</form>
</td></tr></table>
<!--END FORM-->
</body>
</html>
Word Filter II
Sep 29, 2002Filter out words from multiple fields:
<html>
<head>
<title>Word Filter</title>
<!--BEGIN WORD FILTER JAVASCRIPT-->
<script language="JavaScript">
// Word Filter 2.0
// By Premshree Pillai
// http://www.qiksearch.com
var swear_words_arr=new Array("bloody","war","terror");
var swear_alert_arr=new Array();
var swear_alert_count=0;
function reset_alert_count()
{
swear_alert_count=0;
}
function wordFilter(form,fields)
{
reset_alert_count();
var compare_text;
var fieldErrArr=new Array();
var fieldErrIndex=0;
for(var i=0; i<fields.length; i++)
{
eval('compare_text=document.' + form + '.' + fields[i] + '.value;');
for(var j=0; j<swear_words_arr.length; j++)
{
for(var k=0; k<(compare_text.length); k++)
{
if(swear_words_arr[j]==compare_text.substring(k,(k+swear_words_arr[j].length)).toLowerCase())
{
swear_alert_arr[swear_alert_count]=compare_text.substring(k,(k+swear_words_arr[j].length));
swear_alert_count++;
fieldErrArr[fieldErrIndex]=i;
fieldErrIndex++;
}
}
}
}
var alert_text="";
for(var k=1; k<=swear_alert_count; k++)
{
alert_text+="
" + "(" + k + ") " + swear_alert_arr[k-1];
eval('compare_text=document.' + form + '.' + fields[fieldErrArr[0]] + '.select();');
}
if(swear_alert_count>0)
{
alert("The form cannot be submitted.
The following illegal words were found:
_______________________________
" + alert_text + "
_______________________________");
return false;
}
else
{
return true;
}
}
</script>
<!--END WORD FILTER JAVASCRIPT-->
</head>
<body bgcolor="#FFFFFF">
<!--BEGIN FORM-->
<font face="verdana,arial,helvetica" size="-1">
<form name="form1" method="get" action="" onSubmit="return wordFilter('form1',['name','email','subject','message']);">
<table>
<tr><td>Name :</td><td><input type="text" name="name"></td></tr>
<tr><td>E-mail :</td><td><input type="text" name="email"></td></tr>
<tr><td>Subject :</td><td><input type="text" name="subject"></td></tr>
<tr><td>Message</td><td><textarea name="message" rows="5" cols="30"></textarea></td></tr>
</table>
<input type="submit" value="Submit Form">
</font>
</form>
<!--END FORM-->
</body>
</html>
Word Count
Nov 3, 2005I know how to do a regular word count where it splits at the " ", but is there a way to split it at " " and " " [space and double space] in the same code so it accounts for people that double space also?
View 6 Replies View RelatedHow Do I Extract A Word From Url
May 13, 2009the title basically sums it up. how can i see if a word is in a url and then if it is, do something with it.
View 9 Replies View RelatedShorten A Word
Dec 16, 2009I have in javascript a text say I am an idiot
I want to do it. "I am...." and on mouseover it shows up I am an idiot.
How can I do it?