Getting A Ref To A Function With A String
Jul 28, 2005I'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?
I'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?
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 RelatedHow 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]...
i can pass numeric value to my javascript function but when i try to pass a string the javascript function will not work..
<script type="text/javascript">
function prompt1(prov_id)
{
var pf = document.getElementById('pForm1');
pf.style.display = 'block';
[Code].....
I have
toggleDisplay(document.getElementById('table2'))
In a table, and I have this javascript function
var rowVisible = true;
function toggleDisplay(tbl) {
var tblRows = tbl.rows;
var table='table';
document.write(tbl);
for (j=1;j<=100;j++){
if(tbl==table+j)document.write(table+j);
} for (j = 0; j < tblRows.length; j++) {
if (tblRows[j].className != "headerRow") {
tblRows[j].style.display = (rowVisible) ? "none" : "";
}}
rowVisible = !rowVisible;
}
How can I get the tb1 name or the string, coz when I document.write I get [object HTMLTableElement] instead of 'table1' id.
I have an application that navigates through the links in a document,
most of which are "javascript:doThisFunction(args)" type of links.
Using DOM navigation I can find the reference to the javascript
function and store it as a String variable, but is there a way to
execute the function? Currently the only way I know how to do it is
in a series of if/else statements as in:
if (link=="doThisFunction(args)")
doThisFunction(args);
else if (link=="doThatFunction(moreArgs)")
doThatFunction(moreArgs);
... etc.
is there a more elegant way to do this?
I would like to separate my javascript completely from my xhtml. in the
end there should be only
<script type="text/javascript" src="javalib.js"></script>
in the head-tag to my javascript.
Because I want to use some ajax-requests and other javascript-functions
on my xhtml, I need to dynamically add event handlers to any possible
dom-elements. All solutions I found so fare are for specific, pre-known
dom-elements: like 'all <imgof a certain <span>-class get an
onmouseover event handler'. But I need a function, which runs onload of
the window and dynamically determines, which dom-elments need an event
handler and which ones don't. Code:
I am looking for a javascript function that will parse a query string.
Parameters are passed in the url: url?a=3&c=5&etc
An array is returned that uses the variable name as the index.
array["a"]=3
array["c"]=5
etc.
How can I call a function in javascript like code...
View 6 Replies View RelatedI have an issue building a query string. Basically, I have this:
/sites?order=site_numper_page=20&
But I would like to convert it to this:
/sites?order=site_num&per_page=20
I have tried this to check if the current iterator is less than the length of the object and if so, then add the "&", otherwise, don't. But it doesn't seem to work:
$.each(query_string, function(key,value){
params += key + '=' + value;
if((value + 1) != query_string.length){
params += "&";
}})
I am using ajax to pass php variable to javasccript function as shown below for my particular application.
i am using the foolowing function from ajax.js freely available from net to implement the ajax functionality as
var abc = new sack();
PHP portion which passes the response text:
************************************
<?
$table=$_GET['tablename'];
[Code]....
1] When $table is having a string with only numeric characters for eg: "123" we get the alert
2] When $table is having a string with alphanumeric characters for eg: "123efg" we get the error report as "missing ) after argument list"
3] When $table is having a string with alphanumeric characters for eg: "efg123" or "abcdfr" we get the error report as "efg123 is not defined" or "abcdfr is not defined".
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 Replies View RelatedSo I have a string which I want to use to call a function. How can I do this?. For example lets say I have a string = "function1". Now since I have this string I to use it to call code...
View 3 Replies View RelatedI am new to Javascript and i'm currently building a site that entails a 'quiz' part where the client selects an option from a radio button. Then they move on to a different page, and so on and so on until a results page where the correct number of questions answered are made into a percentage.I understand that you can use the GET or POST to pass this into the query string and then extract the answers from the query string but I am having trouble implementing this.
View 1 Replies View RelatedIn the following example, I use the function "SetUp(SBox,AObjStr)" to send an object reference to the function "Populate(SBox,SObj)".
Seems to work OK, but it is a 2 step process to assign the JSON objects to the selected drop-down boxes. Fairly easy, but somewhat tedious, to change to fewer or more levels as desired with a common bit of code.
However, what I would like to do is simplify it a bit more ... Is there a way to bypass the "SetUp" function to "Populate" the multi-level drop downs directly? I think what I'm looking for is a way to pass a string in the function that would be recognized as an object (in this case a JSON or other form of array) and be decoded to add options to the drop-down choices, but I don't have a clue as to how that might be accomplished without the extra "SetUp" function!
Code:
<html>
<head>
<title> Passing Object Indirectly </title>
<script type="text/javascript">
[Code]....
Im looking to make work my script on both IE and Netscape. It works
fine in IE, but netscape cant handle "dynamic" variables. I need some
help!
Is there a CORRECT way to pass a string as parameter and then use it
as an object in Netscape? IE does that without problem... and Netscape
seems not able to handle it.. Code:
I see that jQuery provides a function to turn an object into a set of URL query parameters: $.param({foo:"xxx", bar:"yyy"}) => "foo=xxx&bar=yyy" is there a function which does the opposite, i.e.parsing a query string into an object? The reason is that when I make an Ajax request, I want to take some parameters from the original page and include them in the new request, and modify others. I can get the original page's query string from location.search, which may contain, say, "?foo=xxx&bar=yyy" Now, suppose I want to submit an Ajax request with the same value of foo as the original page but a different value of bar, what's the cleanest way to do that? Remember that the original query string might have the two parts the other way round, i.e. "?bar=yyy&foo=xxx" If I need to write a function to split this myself, I know it's not a major undertaking, but I just wanted to see if I've missed something in the API.
View 3 Replies View RelatedNot sure what would be the best way to do this. I need to add a click function for all :submit and :button that are not disabled or have an alt text of no-touch.
View 6 Replies View RelatedIs there a replaceall function for a string or array?
How would it be used?
I am working on form validation, i want to validate "Name" input field value . I want that in "Name" input field no number can be input.
Is there any function which search number/s from string ?? i.e if user inputs any number in that field with string i can display error message(Name can't be alpha numeric).
so I have a widget that will let you get alerts texted to a phone. I am trying to store the info, but I can't get the user's input into my javascript function shown below:
onClick="collect('info', 'nname=' + document.getObjectByID('Nname').value + ';num=12345;
How can I get the content as a string of a text field and use that in my function? Like I said, this is probably a relatively easy question for most, but I cannot figure it out :/
I have a string with javascript linebreaks with /n. I want to make a function that will make a text only ordered list (text within a text area... i.e. I don't want to us ol and li)
For example,
Spot1
Spot2
Spot3
would be converted to
A) Spot 1 -
B) Spot 2 -
C) Spot 3 -
So far I think I need to use an array, and replace...
Code:
function AddLabels(element_id) {
x=document.getElementById(element_id).value;
countlinebreaksstr=x
try {
return((countlinebreaksstr.match(/[^
]*
[^
]*/gi).length));
} catch(e) {
return 0;
}
var myArray = [A,B,C,D,E,F,G,H];
var i=0;
for (i=0;i<=10;i++)
{
}
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.
i need to write a function to remove consecutive slashses from a string
[Code]....