I'm trying to return all the permutations of a given string, so I wrote the following recursive function:
The problem is, I'm not getting all the permutations, and I don't know why.
For example, if string="bindle", the output I get is:
And then the function stops.
Here's a simplified version of the function that's giving me trouble:
Code:
function saveArray(w){
var arr="['z',[";
[code]....
Here's the function:
function getParentElementByTagName(child, TagName){
var cn;
if (child.parentElement){
cn = child.parentElement;
if (child.parentElement.tagName == TagName){
return cn;
}else{
getParentElementByTagName(child.parentElement, TagName);
}}}
although it finds the element, the function returns null ( on the line
'return cn', cn is not null though). Is my algorithm wrong ?
How would you go about writing a function that returns a string that outputs a branched bulleted list using <ul> and <li> tags of all the html elements in a page? The html elements don't all have id's or names, so I cannot reference them directly. I would like to do it recursively so that I can grab all the elements, not just those two or three levels deep.
[Code]...
I have a string "ajrdvbfomfkswkmbncrfu" where the 3 letters b,k and f can be in three forms: b,b',b" and k,k',k" and f,f',f".I want to find ALL the possible string combinations.Is there a simple way to do that in JavaScript? (probably with several for loops)
Ex: Hera are 5 combinations:
ajrdvb"fomfkswk'mbncrfu
ajrdvb'fomfkswkmbncrfu
[code]....
I'm having trouble with a recursive function.
The function is supposed to identify nested folders in a hierarchical
folder structure.
The function "searchForFolders()" is supposed to traverse sibling
nodes in each iteration, and for each sibling node, it calls itself
again, to see if there are child nodes of the current sibling.
The code below contains the function in question. For simplicity's
sake, I have replaced the images with text characters. It doesn't
look as good, but you should be able to see how the nesting works.
When you click on a "Folder", you will get debug text on the RHS of
the screen.
You will see there is an XML hierarchy. That is parsed by another
function in the page to write out the hierarchy. That is working
fine. The only functions that I am having trouble with are
"searchForFolders()" and "hideShowFolder()". Code:
I'm calling a recursive function, and I want to display an alert after its done running, the thing the function is "done" after goes through it once.Here's the coles notes version....
Code:
function yay(n){
n = n-1;
if(n=0){
[code]....
I don't want it to show the alert until its done all of it's recursive splendor.
I am coding an AJAX DHTML whatever application and I was fed up with
always typing a lot of appendChild() functions.
I created a custom one called append_children() and wanted to share it
if anyone need such a function.
function append_children() {
var a = append_children.arguments;
for ( var i = a.length - 1; i > 0 ; i-- ) {
try {
a[i-1].appendChild(a[i]);
} catch(e) {
for ( var j = 0; j < a[i].length; j++ ) {
append_children(a[i-1], a[i][j]);
}}}}
I have written a function that works but it is recursive so ends up blowing the browser stack.I have seen a few examples of converting recursive functions to use a local stack but cannot convert my own function.I have a recursive function that is using the return values to build a result.
View 2 Replies View RelatedJavaScript Challenge Play--Random Color (The English Version of JavaScript)
Write a function to return a string that can represents a color.
Requirements:
1. The color is random. The color string can be similar to "cf9c63", also similar to "rgb (211,100, 180)".
2. Code should be concise, clear, easy to read, good performance, and better than my solution.
And go to [url] to see more!
I've got following function:
[Code]....
I would like to run this in recursive mode, and I'm starting the function with:
$(function(){
$.bubbles();
}
The problem is, that function works only one (and a half) time. Console shows: start callback start I have not idea what is a problem. Function needs to be run constantly.
I have seen many script and pages on the Net, that show a code like this as correct
[Code]...
but when I try I receive the error countDown is not defined.
I am currently trying to create a simple form based web-page (uploaded here [URL] that creates a query for a WMS (Web Map Service).
The page consists of about 10 different forms, which are all put together in a (string) variable named "compiledQuery" in a function named "compileRequest" which is activated via a button. I would like to print out this variable on the page so that the users can see the query for themselves. After doing some research I came to the conclusion that the best way to do this would be via an iframe (I do not want to use a pop-up). The function I use to do this is:
function printRequest()
{
var query_frame = document.getElementById('frame_compiled');
query_frame.document.write(compiledQuery);
}
"frame_compiled" is the name of my iframe:
<iframe name="frame_compiled" width="400" height="125">
</iframe>
I know that "compiledQuery" has been assigned a value (I used an alert with the value). Hence, I also know that the "prinRequest"-function works on principle... However, it seems as if I am having problem with retrieving the name of the iframe to the function (I tried doing an alert with the value, it was returned as null).
So, I suppose my question is this: How do I properly retrieve the value of the iframe, and am I on the right way using document.write to show the value of "compiledQuery" to the users? Or should I use another way of doing this completely?
write JavaScript program for matching of parenthesis(opening and closing brackets) in a string
View 6 Replies View RelatedI have been looking at this code for two evenings now, and rewrote it 4 times already. It started out as jQuery code and now it's just concatenating strings together.
What I'm trying to do: Build a menu/outline using unordered lists from a multidimensional array.
What is happening: Inside the buildMenuHTML function, if I call buildMenuHTML, the for loop only happens once (i.e. only for 'i' having a value of '0'.) If I comment out the call to itself, it goes through the for loop all 3 times, but obviously the submenus are not created.
Here is the test object:
test = [
{
"name" : "Menu 1",
"url" : "menu1.html",
"submenu" : [
[Code].....
'Menu 2' and 'Menu 3' don't show up! I'm sure it's something small that I'm overlooking.
reSplit is used to return an object from a string of name/value pairs.
pass reSplit()your own delimeters or use the defaults.
String.prototype.reSplit= function(d1,d2){
if(!d1) d1= /s*;s*/
if(!d2) d2= /s*=/;
var Obj= new Object, tem;
var A= this.split(d1);
var L= A.length;
for(var i= 0; i< L; i++){
if(!A[i]) continue;
tem= A[i].splat(d2);
Obj[tem[0]]=tem[1];
}
return Obj;
};
String.prototype.splat= function(delim){
var ax,L;
var d= this.match(delim);
if(!d) return this;
else{
ax= d.index;
L= d[0].length;
return [this.substring(0,ax), this.substring(ax+L), d[0]];
}
};
I am "writing" a javascript function to my page with php:
<html>
<head>
<title>Just about everything</title>
[code]....
<disclaimer>js newbie</disclaimer>
My page has a form comprised of several radio buttons. I want to poll the
buttons to determine which button was selected and convert its value to a
string. I then want to use the string on the same page. Code:
I am building a string inside a variable prior to printing it on screen as follows :
myclock += hours+':'+minutes; where "hours" and "minutes" are variables initialised elsewhere. How can I add a carriage return or new line character to the end of this line, so that anything else cocatenated to this variable is displayed on the next line.
I'm working on a function that checks the css href in an included html file and if it is incorrect it adjusts it. my problem is in this piece of code
Code:
hrefrege = /href="[^ ]+"/i;
originalHref = m[0].match(hrefrege);
originalHrefArray = originalHref.split("/");
[Code]....
Why doesn't it recognise it and how do i fix my problem?
I'm not that familiar with javascript, and I am trying to write a
toFixed function.
The function takes two arguments, the number and the number of decimal
places we're interested in.
If the number of decimal places is negative, it's interpreted as the
number of significant digits.
Thus:
toFix(12345.6789,2) -12345.67
toFix(12345.6789,0) -12345
toFix(12345.6789,-2) -12000
I've hacked up a solution that so far works on all tested browsers for
the first 2 cases.
It's the last one I'm having trouble with... How do I get only the
significant digits?
It has to work for all of the following cases:
toFix(12345.6789,-2) -12000
toFix(12345.6789,-5) -12345
toFix(12345.6789,-7) -12345.67
I need to return a string of JS from my php file. In my ajax.php file these are the last lines ($js is a string of js generated dynamically, it works as its calling a function I'm using at the load of the page): $js = getData($day,$the_vote);
[Code]...
trying to write a function where i can pass an array and string and replace the value in return. i.e
var inputStr = "010203040506070809111213141516171819";
i want to pass this value in function and replace each number (number ranges are 01-09 and 11-19 only) i.e if i pass 01 want to replace that with A,02 with B etc.. so problem is i would pass input string and pass back as string after replacing those values by running through the below function. wrote the following,cant seem to split my inputStr into 01 02 etc tried splice and split no luck :
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I'm sure a Google search could answer this, but I don't know what it's called, haha. Dot sytax maybe?chain methodsHow do I write a function that can be called like this:
$('p').myFunction().val('the new value');
I played around, tried this:
function myFunction() {
$(this).css({'color': 'red'});
}
[code]....
I've got a glitch somewhere and it's not obvious to me. Maybe someone can spot it.My problem is that the functions seem to return values but don't display them like they should. I'm testing returned values with a function called sayvalue(item). But when I test "DelTimeCode" the function returns "[Object]". I don't understand. I get returned values from DelTime and DelTitle.My approach is to select a radio button option, return a delivery title and a delivery price from the appropriate functions then write the information. I think I'm close. Any suggestions or observations of an error in my code?I have the following VARIABLES and FUNCTIONS:
<head>
var AmtSV;
var DelTimeCode="";
[code]....
I've been using the document.write function to loop through some xml and print the data within a HTMl table. I thought it would be useful to add a hyperlink to the table row, so I thought the best way to do this would to create a function (called popup), which takes an id as a parameter.
The problem with this, is that when writeing using the onClick, the speech marks seem to all get messed up.
Code:
onclick='popup('"+mailID+"')'
I'm 99% sure it's just the speech marks, i'm just not sure of the right combination, and it's doing my head in
If someone could even point me in the right direction, even the proper name as to what this is called would be great, as googleing it is proving to be a nightmare!
Here's the whole section of code if it's more useful:
Code:
var mailID = x[i].getElementsByTagName("mailid")[0].childNodes[0].nodeValue;
if (r == "unread") { //email is unread
document.write("<tr onclick='popup('"+mailID+"')' title='test'>"); } else { //else is read, so add colour
[Code]....