Assigning Array Values In A Compounding Loop - Keep Getting NaN Or Undefine
Sep 25, 2011
I am taking a js class and there is one minor bug that is driving me crazy with this assignment.
First, here is the code I wrote, then my question:
var games = ["Jacks","Chutes and Ladders","Extreme Uno","Bopit","Barbie Doll"];
var price = [4.00,15.99,25.00,27.99,32.00];
var inventory = [40,15,30,20,40];
[Code.....
I can't (just before this line) assign 0 to each array item - to get it defined because if the user goes back in and adds more, it will always reset the number back to 0, which is not what I wanted.
I tried adding an if..else statement instead, but cannot figure out how to get that to work?
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Nov 11, 2011
So I am working on an excercise that the User puts in a Lastname, Firstname, and a score via textboxes. When the user pushes the add student score it should show up in the text area with this format " Brown, John: 92". When looking at the logic, I understand that each text box will need to be different arrays if im right, and then I will have to concat all three arrays into the format and assign it to a variable. Then assign the variable to the value of the text area. I just cannot seem to put the function together or how you would go about it. how to go about putting it together. The first code is my body of HTML I'm working with.
<body>
<div id="content">
<h1>Student Scores</h1>
<div id="buddy">
[Code]....
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Oct 20, 2011
in Javascript I need to dynamically assign the values of textboxes from an array. For example, The textbox ids are box0,box1,box2 and the array is [0,1,2]. Here i need to assign 0 to box0 and 1 to box1 and 2 to box2.
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Jan 26, 2011
Having a small problem with writing out the matches from an array using a For loop.
I have two arrays, lets say arrayA and arrayB. In arrayB are numbers which are a number of miles, ie 1,2,6,4,5,6,6. And in arrayA are the days of the week. Each day of the week is associated with a mileage, ie Mon = 1, Tues = 2 etc.
My script has found the largest mileage in arrayB. Next I have to find the days of the week that match this highest mileage and write these out, along the lines of "The highest mileage was 6 run on Wed, Sat, Sun."
I have managed to get a For loop to work with this BUT..... I can only get it to write out the first instance of the day the match is found. ie "The highest mileage was 6 run on Wed,"
[CODE]
maximumDistanceIndex = 0;
for (var distance = 1; distance < distanceArray.length; distance = distance + 1)
{
[Code]...
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Sep 15, 2009
I'm calling a function that I want to loop thru an array, check the values and disable the drop down accordingly.
[Code]...
I keep getting a selBox[i] not defined. Is it the xxx[x] = ?
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Jun 11, 2009
Is
fibonacciArray = [20];
fibonacciArray[0,1] = (1,1);
Possible?
I know I can do:
fibonacciArray = [20];
fibonacciArray[0] = 1
fibonacciArray[1] = 1
But the former requires less typing
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Sep 29, 2011
I am currently putting together a trivia game and I have stored several items in an array for example the questions, and the answers, points value... etc.
but my dilemma is I have to assign an "id" to the elements in the the array so i can use the function getElementById() to call the information. I do not have a clue how to do this.
*** also the second issue is my array is showing an error as UNDEFINED BUT i have declared it in "var triviaArray"
this is my array:
var triviaArray = new Array [
triviaArray["What's the capitol of Canada?","TORONTO","VANCOUVER","OTTAWA","QUEBEC",10,"choice3"],
triviaArray["How old was Michael Jackson when he died?","35 yrs","50 yrs","40
[Code]....
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Sep 1, 2007
I'm moving from php to JavaScript. What I want to do is assign a value to a variable only if the variable hasn't been assigned yet.
In php it would be:
if($variable=='')
$variable='default value'
I thought the equivalent in javascript would be:
if(variable=='')
variable='default value'
Can anyone explain why this doesn't work, or what I should do instead?
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Jul 8, 2009
I am trying to assign values to a bunch of form fields. However, I don't want to loop through EVERY field in the form, just a specific subset of fields. The fields I am trying to change are all named similarly myField1, myField2, myField3.So, my thought is that I would like to use a for loop and loop through the appropriate fields by simply incrementing a variable and appending it to the end of the string "myField" in order to change the appropriate field.How can I evaluate "myField + iterator" into a useable reference to change the value of said field?
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Jun 17, 2010
I am trying to assign a value to a java variable inside the script that I am calling via ajax but once the call is over it shows variable as undefined:
$.ajax({
type: "GET",
url: "getdata.js",
dataType: "script",
[Code].....
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Oct 12, 2010
I'm trying to assign the values from the JSON data returned when I run this code into an array that's outside the callback function. The data is multidimensional, and I have been able to use this data within the callback function. However I want to use it outside that function. i.e. the jsdata returned in the code below is to be used outside the function
Code:
$.getJSON('../fxns/status.php',function(jsdata){
//do some stuff with JSON data or pass to global variable[code]..........
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Mar 2, 2009
I want to create an associative array dynamically pulling the index values from an array (propertyArray); Associative array is created inside create function and then returned. But after it is returned, I cant use index names to retrieve values. It returns undefined as below code shows.
Code JavaScript:
var propertyArray=["a","b","c"];
function create(){
var array=[];
[code]....
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May 10, 2009
function read()
{
var numbers = new Array();
for (i = 0; i < field.length; i++)
numbers[i] = document.test.checkboxName.value;
var counter=0;
[Code]...
I want to read the values of the checkboxs and store the vlaues into an array (there are more than 1 checkboxs) the form name is text and the names of the check box = checkboxname
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Apr 10, 2010
This one is throwing me off! Either I am making a stupid mistake or I'm doing it totally wrong I have an array, and I am trying to select unique values from it and assign it to another array. Here is the code:
Code:
var flag;
for (i=0;i<=pdfs.length-1;i++)
{
flag = 1;
for (j=0;j<=pdfs2.length-1;j++)
[Code]...
The problem is that the if (pdfs2[j] == pdfs[i]) statement ends up never being true. There are URL's to pdf files in the array. On the other side, if there is a much easier way to select unique values from an array, please feel free to point it out.
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Nov 9, 2011
I have the following array:
I would like to add up the common values so add all values of Android into one array so it becomes something like this: [["Android", 92]....]
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Dec 7, 2011
I am having difficulty with creating a function that uses a For Loop to pull in two unknown variables and subtracting the first number from the second number. The subtraction occurs but I always get a negative number. This exact same function works correctly when adding but does not when I use it for subtracting to values. Here is what I have so far:
function calcDep1()
{
dblTotal = 0.0
for (i=8;i<=9;i++)
[Code]....
I have worked with it for several hours and also changed the equation to reflect dblTotal = dblTotal - dblValue but it still evaluates to a negative number. The two test values I used are 100 - 50 which should equal 50 but the answer always comes out to -150.
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Sep 27, 2010
I have a struct like this:
Code JavaScript:
function Sampe(name, value, unit)
{
this.name = name;
[code]...
I then have an array of instances of this struct. I'm trying to create a search feature and need to loop through each instance of the struct in my array. Then I need to loop through each value in the struct and check it for a substring. If a substring is found the entire struct instance is printed and the search will skip to the next struct instance. Right now my loops are not working properly. The loop below with 'item' is not correct as 'item' just prints out a number (should be a text value).
Code JavaScript:
function searchView(text)
{
document.getElementById("searchResult").innerHTML = "";
[code]....
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Jul 20, 2005
I have a form with a lot's of number of Text and Hidden Fields. I just do a simple loop to get each value for each attribute. I have about more than 2000.
if i do something simple like :
for (var i=0; i<2000; i++)
aValue = i+10;
it runs well. But if i do something like
for (var i=0; i<2000; i++)
aValue = document.myForm.elements[i].value;
it gives me 100% CPU for a long time before i submit the form.
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Jan 19, 2006
I have a bunch of input fields, each which will have a numerical value. There can be any number of input fields in the form, and that number will vary depending on what the user has selected prior in the application.
So basically I created a loop that goes though all of the INPUT fields within the form. How can I have it find the value of each field and add them all together, then return to me the total? It'll need to be made into a variable, but a simple alert with the total value will give me enough to work with.
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Jan 22, 2008
i am new to programming and have been given the challenge of writing code to request a password, then search through the cP array,until a match is found, then the index number on the cC array which corisponds to the 1st array should show me the customer code.
i have sat here all day and got nowhere, the textbook i have is next to useless and is just confusing me more.
i dont want someone to do it for me but i do need help in getting started as i dont understand how to search for a specific string within the array or how to link the arrays for the correct output. Code:
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Sep 1, 2009
The Script below generates a sudoku (9 by 9) table and displays the table on screen.
what I am trying to do is to get a string of numbers entered into the text field labeled "enter values" on the page below the table, into each cell box of the sudoku table when the button labelled "load" is pressed. This would fill the sudoku table with characters, one character (from the text field) to each of cell boxes in the sudoku table.
It requires using a for loop, I tried using one in my function (g) but it doesn't work,..
<html>
<head>
<title>Sudoku</title>
<style type="text/css">
[Code]....
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Jun 16, 2011
Using JQuery how do you loop through fields taking a value from each one and multiplying with a specific value.
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Dec 28, 2011
How to loop this code for the array I have in php? I need this to work for all associates we have on our contact page. This checks their AIM status.
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Apr 2, 2010
I am having a hard time figuring this out, I have two simple arrays and I want to populate one by asking a visitor to enter information, it goes something like this...
var country = new Array(5);
c_list[0] = "USA";
c_list[1] = "UK";
c_list[2] = "France";
c_list[3] = "Germany";
[Code]....
how do I use a simple for loop to use the names entered and populate the second array?
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Nov 6, 2009
I have created a 2D array as a sort of "game board" and would like to place an object(cubeShape) in each square and be able to interact with specific instances. Since I am using the O3D API, I would like to do this by taking the object's place in the transform matrix and storing it in the 2D array. The problem is, I run this code:
[Code]...
And then when I check it, every value in my array is filled with 9 instead of the actual count. i.e. myBoard[1,2] = 9, myBoard[2,2] = 9, etc. Whats going on?
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Mar 7, 2010
write a while loop that prompts user to enter name.add their names to an array.if they enter "exit" end the prompting
sort array and list in sorted order
-----------------------------------
this is what i got so far. sooo confused because i cant get the user input into an array
var names = new Array();
var loopCounter;
loopCounter = 0;[code]......
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