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?
View 1 RepliesHow can I call a function in javascript like code...
View 6 Replies View RelatedWhen 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.
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:
View 2 Replies View Relatedi 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.
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....
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?
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?
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".
The problem is that it keeps returning a value of 0 every loop. When tested in Internet Explorer, FireFox and Google Chrome, it works just fine, returning values as it should (in this case the values of 32, 36, 35, 36). However, like i said, Safri returns 0, 0, 0, 0.
Crazy thing is, before it calls the checkArray() function, i check to make sure its sending the correct number and it does, so its something to do with the .length part since i did a check on that and that's where its coming up with the 0's.
var aryItems = new Array();
function add2Array(theName){aryItems[aryItems.length] = theName;}
function checkArray(theName){
for ( var z=0, len = aryItems.length; z < len; ++z ){
[Code].....
validate: function () {
contact.message = '';
if (!$('#contact-container #contact-name').val()) {
[code]....
xmlDoc.getElementsByTagName('TagName').length is not working in FireFox xmlDoc.getElementsByTagName('TagName').length is returning 0 in FireFox. its worth mentioning taht xmlDoc.load(XmlFile) is working fine in Firefox while its ok in IE.
following is my code:
if (mozilla) {
xmlDoc = document.implementation.createDocument("", "", null);
xmlDoc.async=false;
xmlDoc.load(XmlFil);
[Code].....
For some reason i'm getting the error of "length is null". Which is from this.
function display_form(id) {
//Create some variables
var html = "";
var container = "form_container";
var menu = load_menu(id, false);
//Get id
for ( var i = 0; i < menu.length; i++ ) {
alert(i);
}
http = getHTTPObject();
http.onreadystatechange = function() {
if ( http.readyState == 4 && http.status == 200 ) {
document.getElementById(container).innerHTML = http.responseText;
} else {
document.getElemenyById(container).innerHTML = "Loading...";
}}
http.open( "GET", "includes/forms.php?form=" + id );
http.send();
//Watch input fields
//login_listener();
}/*
Here is the function:
function load_menu(menu, return_d) {
//Availible menus
var data = [];
data [ 'login' ] = [ 'Login', 'Register', 'Recovery' ];
data [ 'settings' ] = [ 'Profile', 'Account', 'something' ];
if (return_d == false) {
return data[ menu ];
} else {
//Menu container ID's
var cons = Array('menuitem1','menuitem2','menuitem3');
for ( var i = 0; i < cons.length; i++ ) {
document.getElementById(cons[i]).innerHTML += data[ menu ] [ i ];
}}}
Extra info:
id = login
menu = login
Given the following code:
var xf2;
function f1()
{
if (document.createElement && document.body && document.body.appendChild) {
xf2 = new f2(arguments[]);
}
}
I am getting a syntax error in the "new" statement following the [].
How do I pass the variable-length arguments list received by f1 on to f2?
I want to call java function in javascript.In which we pass one parameter to function and its returns String value which I want to display in alert message.
View 2 Replies View RelatedI m having a text data of around 6 page length in a text editor...I want to print dat data using window.print. For that i displayed dat data in a html page and used window.print(). Bt my client wants dat some line spaces shud be inserted first in the starting of the page and on the second page also...After that the printing shud be normal... How can i set the page in such a format...?
View 1 Replies View RelatedI have this string
var start = $('[name=invoicedate]').val();
alert('start'); // 2010/01/01
how can I add five days to have the following?
alert('start'); // 2010/01/10
Tried var start = new Date(year, month, day+5); but seems not work
I got this page: [URL]
I got this PHP script which generates a javascript array of filenames. Everything works fine when I add DIRNAME to the array strings in PHP, but if I want to concatenate the strings in this for loop, it gets weird.
I've tried alert() both arrays when they are the same, and there is no difference there, however when the array of files (fadeimages) is supposed to get loaded into the slideshow it doesn't get displayed.
When I look it from the Google Chrome Inspect element, the image src is the url and /i. That's the begging of the path name, but why only the first letter?
why the string comparison test doesn't work in this javascript function? It works if you use just text between the currentItem div tags, but not when you use html for an image. I even tried to use iso characters instead of angle brackets, as in "<img src=expand.png></img>" and still no dice. Why not?
Is it because of the way innerHTML manages html and it's not really a string? Is it because it doesn't have all the tags and some other representation?
Code:
<html>
<head></head>
<body>
[Code].....
this is not working. it's a list of client names, (lawyers.....blehh!) separated by an * (asterisk), the second line is the problem(?),[code]
View 5 Replies View RelatedTrying to validate a name... If it's in the database, return "exists" if it isn't return "newOne". I get "exists" or "newOne" back in my success function and set a variable (var ifExists) with that text, but when I try to do something based on whether ifExists = "newOne" or "exists", it always goes into the first part of the function...
jQuery:
var sendMenuName = "menuname="+menuname;
$.ajax({
type: "post",
async: false,
[Code]....
I've added the most basic implementation of JQuery tabs. It's working fine so long as there's not a url-friendly query string.In other words, if I load index.php, it will work fine. Even index.php/anystring doesn't have any problems. However, if I try to load something such index.php/anystring1/anystring2, none of the CSS styles for the tabs appear to be applied to the tabs list making all the tabs' contents appear on the same page.how I can work around this to ensure I can preserve the current format of query string without breaking the tabs? Using the old fashioned way doesn't appear to result in any problems, but I'm trying to avoid having to revert to that format.
View 2 Replies View RelatedI'm trying to work on something wierd and was wondering, given a string
that contains the name of a function, can you get a reference to that
function?
How do you call a function if it's name is in a string:
I have the function declared:
function Myfunc($arg1, $arg2){
echo $arg1.$arg2;
}
Now consider that cFuncName holds the functions name: cFuncName = "MyFunc"
How do I call MyFunc using this string variable?
something like .... $cFuncName("Test", "=OK")?
But it doesn't work.
I'm looking to autosubmit a form on page load, but only when the url contains a certain word.
Here's how I want it to work...
<script type="text/javascript">
function myfunc () {
if (url contains http://www.mysite.net/search.aspx?search=) {
var frm = document.getElementById("foo");
frm.submit();
[Code]....
I want to convert a function in to a string so i can later display it. how would i do it?
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript"></script>
<script>
$(document).ready(function(){
$.ajax({
[Code]...