String Length?
Aug 10, 2006
The following function takes three different fields (which combined make up a phone number) and tests it to make sure that all the characters entered are integers. If this is true, it sets form.Phone.value = entirephonenumber. I would like to incorporate an additional test which, after determining that all characters in the string are integers, checks to make sure that the string length is 10. If it is less than 10 or more, I want the entire function to return false and display an error message (the same one is fine..) Code:
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Mar 16, 2009
i have a xml file where i do the following query:
entry_03_title=doc.documentElement.getElementsByTagName("entry")[2].getElementsByTagName("title")[0].firstChild.data;
now having the variable "entry_03_title" i would like that javascript do this:
if(entry_03_title.length>30) entry_03_title.length=6
in other words if the title is bigger than 30 chars long make it 6 chars, but this doesn't work.
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Jan 10, 2003
Having trouble with this simple code...
if (form.SSN.length != "9") {
alert("SSN must be nine digits long");
form.SSN.focus()
return false; }
It always displays the alert even if it does equal 9 digits long. I'm new to javascript so if this is a really simple error just go with it....
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Aug 17, 2010
How can I call a function in javascript like code...
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Aug 29, 2010
How can to obtain length of string variable, for example if I have:
var msg = 'hello world!';
Does it exist a method to count string characters?
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Aug 16, 2010
i used the String.length(string) function in javascript to get the length of string but nothing happened. It doesn't give me a value when i tried to view the result using an alert function. Actually, this kind of problem does not only exist with the length function, it's also the same with the trim(). I have not tried using other functions but perhaps it won't also work. What could be the possible reason for this?
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Aug 22, 2007
This is quite mysterious. I have several list items like this:
HTML Code:
<li>Private</li>
I am looping through them all trying to get the text inside each list item for a comparison with a string from elsewhere.
Javascript Code:
var coresubmenu = document.getElementById('core').getElementsByTagName('li');for (var i = 0; i < coresubmenu.length; i++) { coresubmenu[i].onclick = function() { if (this.firstChild.nodeValue == 'Private') { // fail } alert(this.firstChild.nodeValue.length); // alerts 8 }}
IE alerts one more than the actual length in all cases. Google hasn't brought anything up for me on this one - any ideas?
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Mar 27, 2011
When I run the following code, the .Length function returns "undefined."
var strTest = 'test';
alert(strTest.Length);
Using the typeof function, I know that JS is treating the variable as a string.
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May 28, 2011
How would I go about outputting something when a database value is being changed?
e.g. If im typing in a text field, which is saving what ive typed every time i keyup into a database field, it then shows on another page on another user computer as "User is typing something in field X"?
If no typing is happened, i.e. the database field value is not changing, nothing is echoed out.
It would also be cool to have something show "User is deleting text from field X" when the field value is getting shorter.
In pseudo code, something like if the value of database string is bigger than 100ms ago, echo out "user is typing something in", and conversly, if string is getting shorter echo out "user is deleting stuff".
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Jul 23, 2005
i need some creative input. i'm trying to enable the user to input a
length of time, from one day to about 10 years. ideas i've had have
been:
- 3 pull down boxes, for days, months, years
- an entry box for a value and a pull down box for units (days, weeks,
months, years)
- a scroll bar to slide along to a corresponding time
I'm not sure i should even use javascript, maybe an applet instead. I'd
really appreciated some new ideas or brainstorming.
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Jan 4, 2006
I have a problem with getting the amount of childs in a XML structure,
the strucure is somewhat like the following:
<?xml version="1.0" encoding="iso-8859-1"?>
<cms>
<num>21</num>
<xmlnames>
<field>id</field>
<field>name</field>
<field>availablefrom</field>
<field>availableuntill</field>
<field>owner</field>
</xmlnames>
</cms>
If I use the following to get te amount of childs for xmlnames I get an
amount of 11:
xmlObj.responseXML.getElementsByTagName('xmlnames' )[0].childNodes.length
Is this wrong or maybe there is a better / other way of counting the
child amount?
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Aug 19, 2006
I am running a bit of JS to highlight text inputs onFocus in IE. It
seems to be working on all of the forms on the site except one. The
debug code in the script displays the number of input elements in an
alert. On the page where it does not work, the alert is "[object]".
Here is the script:
function initHighlight() {
if (!document.getElementsByTagName){ return; }
var allfields = document.getElementsByTagName("input");
alert (allfields.length); // debug
for (var i=0; i<allfields.length; i++){
var field = allfields[i];
var attr = field.getAttribute("type");
if (attr == "text" || attr == "password") {
field.onfocus = function () {
this.className = 'highlightActiveField'
}
field.onblur = function () {this.className =
'highlightInactiveField'}
}
}
}
function addLoadEvent(func)
{
var oldonload = window.onload;
if (typeof window.onload != 'function'){ window.onload = func; }
else { window.onload = function() { oldonload(); func(); } }
}
var isIE = navigator.appName.indexOf("Microsoft") != -1;
if (isIE) { addLoadEvent(initHighlight); }
Unfortunately, I cannot reveal the URL of the page (contractural
restrictions).
Under what conditions would IE believe that the length of input fields
is an object, not a number? I have run the page through two
different validators and there are no errors.
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Jun 17, 2011
I have a standard ul list where I need to keep count of the li's within (users can add/remove). This is my function when they remove a list item (.remove is inside the li), it removes the li fine but I always get zero for the rows.
[Code]...
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Nov 6, 2007
I want to add some length validaitons to this form so that the state is enterted two characters long, the zip is entered five charaters long and the phone number will be entered eight characters long. Code:
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Jun 29, 2011
I need to get the length of table(means no of rows in a table).. My table is inside the TD
Am comfortable with DOM or Jquery
My table structure is
<td id="tb1">
<table> //--- I wabt this table length using the ID of above TD i.e(tb1)
<tr>
<td></td>
[Code]....
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Mar 13, 2011
I'm attempting to run some checks on an input value. Initial HTML:[code]After the page loads a javascript calendar function called JDPicker runs and changes it to:[code] my issue only occurs on this HTML that is hard coded into the page. I have several other inputs (same element structure with the divs, etc) added later with javascript using createElement functions and my javascript works fine on those:[code]My problem is only in IE (testing with v 8). When I try to get the child elements value it gives me this error: "value null or is not an object". I tried using .nodeValue after that and it worked, but then started giving me errors regarding the .length function "length null or is not an object".
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Dec 25, 2010
I want to know if there is a way to return ajax call as html value and not plain text, ie all html formatting will be displayed.
My code:
<script src="jquery.js">
<script>
$(function()
{
[Code]....
String returned from webform4.aspx is html formatted but jquery displayed it as plain text. Is that anyway to display it as html string ?
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Jun 26, 2010
I have a for loop: Code: for( var i = 0; i < aInput.length; i++ ) I want to use this i variable to concatonate it as a string to find an input box
Code:
var j = i;
var qualname = "discountqualifier" + j;
qualname.toString();
if ( inputName == ( qualname ) )
{
Assuming I have a input box named discountqualifier0, discountqualifier1, discountqualifier2 etc...
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Jun 14, 2007
I want to know the length in pixels of a document embedded in a iframe.
The way I go seems to work under IE but not under Firefox (about other
browsers I'll see later). Code:
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Jul 9, 2010
How do I get the length of a form value in jQuery?
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Jul 8, 2009
I have added two numbers from two table cells together using parseInt & innerHTML. I have this stored in a variable. I want to get the length of this number. I need to convert it to a string variable using toString and then access its length method. Whats the best way of doing this? I tried using toString then length but I am only getting "object window"!
Code:
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Nov 4, 2009
I have a textarea field that is validated by Js, this textarea can and will contain the newline character so I validate in JS if(textareaname.value.length < 200)this hten goes through to my php where i also check before I place in to the Database using MYSQL,if( strlen($_POST['textareaname']) < 200 )but my php is giving me a different string length from my javascript.It looks as if Javascript is counting a newline as 1 character and php is treating it as 2.I have checked my slashes, I have used various REgex to check these data amounts. I have also Googled around and there doesnt seem much around.how I can make php and javascript treat a newline as the same amount of characters?
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May 29, 2011
function checkValidFormInput() {
if (document.getElementsByName('customerName').value != '') {
document.getElementById('customerNameImg').innerHTML = '<img alt="Valid" src="images/greenTick.png">';
} else {
[code]....
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Sep 20, 2007
this is a simple script, that uses ajax that sends to the server the total amount of time (in seconds) that the visitor was reading or whatever.
var startime=(new Date()).getTime();window.onunload=function(){
var x=(window.ActiveXObject)?new ActiveXObject('Microsoft.XMLHTTP'):new XMLHttpRequest();
x.open("GET","count.php?t="+(((new Date()).getTime()-startime)/1000),true);x.send(null)}
that's the javascript...
<?php $f=fopen("visitLength.txt", 'a');fwrite($f, $_REQUEST["t"].";
");fclose($f);?>
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Oct 10, 2011
I have the following JS load up via file in the headers of my HTML[code]...
No matter how many times I run the function, it returns 0 for the first two alerts. The first time I run it, it should output "1", then "3". The next time should be "2", "3". Am I instantiating/populating the JS arrays incorrectly? Been working on this for 2 hours, shouldn't be taking this long
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Apr 2, 2010
I want to add the + but stop when i reaches the checked length minus 1.
Code javascript:
var checkedlength=0;
for(i=0;i<document.getElementsByName('checkresult').length;++i){
if (document.getElementsByName('checkresult')[i].checked){
[Code]....
I realize that document.getElementsByName('checkresult').length in if(i<document.getElementsByName('checkresult').length-1) is not the same as the checked.
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