Test Whether A Variable Is Array Or Not
Mar 26, 2002How do you test a variable is an Array or not in Javascript?
Indeed, I need to get the html checkbox info in an html form like this:
<html>
<script>
function test()
[code]...
How do you test a variable is an Array or not in Javascript?
Indeed, I need to get the html checkbox info in an html form like this:
<html>
<script>
function test()
[code]...
I'm using the standard module pattern and the problem is once you set a private variable, trying to test that object independently becomes a nightmare as the next test is polluted by the actions of the previous.So, the options are to have some reset method (which is horrible), setters on everything (defeats the point) or delete object and re-load script (hideous).
View 2 Replies View RelatedI 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:
is there a function that get the name of the first input field of the
current form ?
in my example below I want create an array of form field name and in the
onsubmit assign all element's name to create a simple iteration to test if
some elements in my array, that must be required, are null:
something like function verify(array of string)and in onsubmit something
like return onsubmit(field1,field2,field3....) Code:
The .find() method does not seem to match on input fields by using a class. The ti This problem seems to be only visible on input fields. The following is a demonstration of the issue:
Example at [url]
Perhaps I need a function? that will test for 2 or 4 exact matches, then opens the window or page?
Lastly I need to put some white space btw some data
example aaaa 111111 vs aaaa111111
What I have so far
<html>
<body>
<script type="text/javascript">
var x;
[Code]....
HAVE CLIENT-SIDE FORM COOKIE GET AND SET FUNCTIONS IN THE SECOND WINDOW DOCUMENT EXTERNAL JS.FILE OF A DUMY TEST SITE FOLDER ON MYCOMPUTER. IE8 THROWS 'SYNTAX ERROR' ON THE 'WINDOW.LOAD=FUNCTION, FIRST COOKIE FUNCTION HIGHLIGHTED'. CAN I ACTUALLY TEST COOKIES ON A TEST SITE ON MY COMPUTER WITHOUT THE SERVER (MYCOMPUTER) OR A DOMAIN NAME? YEAH NO HECKLING FROM THE PEANUT GALLERY.[code]...
View 9 Replies View Relatedfunction loadSecondaryNetworks() {
var secondaryNetworks = new Array('13','14');
var select_list_field = document.getElementById('network');
var select_list_selected_index = select_list_field.selectedIndex;
var value = select_list_field.options[select_list_selected_index].value;
value = value.split('-');
[Code]...
this code is supposed to display and load a secondary drop down menu if a particular ID(13 OR 14) is selected from the first dropdown. it works fine for 14, but not for 13. the "test" alert displays for both 13 and 14, but the second drop down only appears when selecting ID 14. I changed my array to ('13','14','13') and then it worked for both 13 and 14. is there something i am not aware of?
I am accepting an array, and a value of a variable to perform multiplication against my array, then write the product back into the array.
[Code]...
here when i click the test button it will create a new test button inside div tag.But after that if i clicked new generated test button document.getElementById("test" ).onclick = function() is not working.how can i add functions to new dynamically created fields?
<div id="a" >
</div>
<input type="button" value="Test" id="test" class="form-submit"/>
when i click the test button it will create a new test button inside div tag
I come from a Perl background, I am wondering how I make a variable into into an array name.. example:
Code:
Perl:
$variable = 'dog';
$dog{'test'};
to make this variable into the array name I would do this:
print ${$variable}{'test'};
how do i do this same thing in javascript?
I am currently struck with getting this part working, basically, the results is a variable which has :
var results = obj.selectNodes('Search');
if(results)
{
var array = new Array(results.length);
for(i=0; i <= results.length; i++)
{
var name = getNodeName(results[i]);
array[i] = { 'name':name};
}
results = array;
}
In this , the results initially has 5 nodes and i create an array of length of results.length and assign the name . however at the end during the assignment of the array to results it stores the length as 6 where in there are only 5 nodes . the 6th one is null i.e no node exists please tell me why am i getting 6 instead of 5 nodes after going thru the for loop . before the for loop the results has the correct number of nodes as required.
I'm trying to compare an array to a variable and see if it has the same value then output the second part of the array:
<script language="javascript">
var photoCaptionID0 = "13006";
var photoCaptionID1 = "24018";
var photoCaptionID2 = "13002";
[Code]....
So using this example. If any of the first section in the array captionID (24001, 13001, etc) has the same value as photoCaptionID0, then print the second part of captionID (Item 1, Item 2, etc).
i hav an array named contents [i] where i wanna get every 3rd value out of it.below i make an example:
contents [i] = [2,4,6,8,10,12,14,16,18];
i wanna find a script dat could return every third value which is 3,6,9
How to convert php variable so it could be used in a javascript section.
For example I have a php array named $places, it's a nested array and I'd like to traverse through all the elements of this array much like it's done in php =>foreach($places as $place) but this done in JS.
In a nutshell how do i convert this variable into a JS appropriate variable.
If I assign an array to another variable, any changes to the array change both variables. Is it a pointer instead of a copy? Try this:
<script type="text/javascript">
Arr=['a','b','c'];
Arr2=Arr;
[code]....
Variables don't do this but it's happening for arrays in IE and FireFox, maybe all others.
I am currently trying to check using javascript whether a php array contains a variable, and if it does then display a message.I have written the following code...
<?php
//php which sets users array to the results of the sql
$selectquery = "SELECT Username FROM User";
[code].....
I need to use a javascript variable when reading a value from a asp array. Currently I have a windows app that has a webbrowser. The windows app invokes a javascript method through the webbrowser and this javascript method returns an object. This object is built in the javascript function using values which exist inside a classic asp array. The function that sits on the relevant asp page, is invoked from my windows app and then returns the object to the windows app is below.
function item(count){
var pid;
var description;
var fullprice;
var discountprice;
var quantity;
var size;
this.pid = '<%=SBagArray(0,count) %>'; //ProductId
this.description = "<%=SBagArray(1,count)%>"; //description
this.fullprice = <%=SBagArray(8,count) %>; //Fullprice
this.discountprice = <%=SBagArray(9,count) %>; //Discountprice
this.quantity = <%=SBagArray(6,count) %>; //Quantity
this.size = <%=SBagArray(2,count) %>; //Size
this.getPid = function() { return this.pid; }
this.getDescription = function() { return this.description; }
this.getFullprice = function() { return this.fullprice; }
this.getDiscountprice = function() { return this.discountprice; }
this.getQuantity = function() { return this.quantity; }
this.getSize = function() { return this.size; }
}
My problem is that the variable 'count' is not recognised by the asp. So, how can I use this variable in such a way that it works?
I want to pass array[x] to a variable so that I can use the variable in .innerHTML. I've researched and not found a reference.
View 7 Replies View RelatedIn javascript is it possible to create a var name from an array value?
(I will assign to that name the return value of a function)
I have this example, I want to create a var name from array_example[0][1]. Is it possible?: code...
I want a prompt box appear and tell the user to input a word,and have that word saved as a variable named word (for example), later I wish to run the variable through a Regex, and run an if statement in which i use the search method for the regex, if the variable is not -1 then i want to alert a specific part of an array. I probably got you going in circles, its hard to explain but basically i want to alert an array named whatever the user inputs, as long as i have the users input already made: for example: the user inputs a word and saves it as a variable named word, then i want to call an array that is the same as the users input.
example:
if he inputs hello,
i want to call for example the array hello[2]
if he inputs internet
i want to call the array internet[1]
$i=0;
echo '<script language="javascript">
var dA = new Array();[code]...
here i want to increment $i above code is not working,
I was wondering if it is possible to put all the non null variables of an array into a string variable with spaces between each array value? For example, if array() is a text array and has 10 values, array(0) through array(9), with three of those values null, let's say array(3), array(5), and array(7) are null, is there a way to put the remaining seven values into a string variable with spaces between each array value?
View 2 Replies View RelatedI have a database which writes to a webpage. The html has one field showing called client_userid with an id of client (see below)
<tr><td>
<span id="client"><WebObject name=client_userid></WebObject></span>
</td></tr>
The value returned in the table is a 7 digit number eg: 1234567 This web view may have one, a few or a thousand records showing depending on the search criteria. For the life of me I cannot find a script that will pass all returned field values to an array that will allow me to remove duplicates and add a hotlink to the individual number and showing the result in a new view of the original table.
I am experience some problems reading a form variable from a
Javascript function. The point with this particular variable is that
its name has the following syntax:
<input name="tx_impexp[tt_content:159]"/>
I want to set this var to 1 from my javascript function, so I tried
to execute the following line of code:
document.frm_1.tx_impexp[exclude][tt_content:159].value=1;
Unfortunately the following error come up:
Error: missing ] in index expression
document.frm_1.tx_impexp[exclude][tt_content:159].value=1
--------------------------------------------------------------|
It seems Javascript expects to close down the bracket at the position
marked...An easy solution would be to change my var syntax but the
point is that I cannot since I am using an already made script and I
should not modify it.
Just wandering if this is due to a syntax error defined according to
Javascript specification language or there is something wrong with
this.
I need little help with arrays :))
[Code]...