Tagged Questions
-1
votes
0answers
16 views
Shortest Path 2d array javascript
Hello so i am trying to come up with a 2d shortest path algorithm using Dijkstra's shortest path algorithm. I understand the concept of the algorithm we are using a breadth first search. I believe my ...
0
votes
1answer
15 views
JavaScript 2D array unable to retreive element in IE
I have the following JavaScript code that executes fine in Firefox, but in Internet Explorer 9 generates the error message:
SCRIPT5007: Unable to get value of the property '2': object is null or ...
0
votes
2answers
22 views
Concisely mapping 2 columns from 2D array to key:value pairs
In this example snippet of code, I selectively convert 2 columns from my 2D array into an object. The 1st column represents the keys, the 2nd represents the values.
I feel like there is a more ...
0
votes
0answers
20 views
How do I eliminate empty records?
So I figured out how to create a script for a timesheet, but when my employees and I use it, we have a bunch of empty records on the target file.
The source timesheet is: ...
0
votes
0answers
27 views
How do I generate an HTML table from 2D JavaScript array using a double for loop?
This is a multiplication table. I just need to figure out how to put each individual number into a different cell in a table. I need the corresponding numbers to line up. I have a div called dTable.
...
0
votes
0answers
43 views
JavaScript: 2-D Array in a game
I'm trying to make a two dimensional array for a zork like game, using javascript, that will change the location of the player based on what they input. The HTML just contains a picture and a ...
0
votes
1answer
36 views
2D JS Array assigning value for each index
This will be a stupid question. but why doesn't the following code assign 55 32 times to every corressponding index for j and k?
var array= new Array([]);
var rows=8;
var cols=4;
for (var j=0; ...
2
votes
1answer
56 views
Javascript 2D Array literate through 1 Dimension dosn't work
I've found some really useful guides on this site so i hope you can help me even further
What am i doing?
I have a exel based Product list saved as .txt
i load this into javascript as follows:
...
2
votes
1answer
80 views
Dynamically add elements to 2-D array
I would like to know how to create an array, and add elements to it with a nested for-loop. How do I declare the array?
I want the finished array to look like this:
var array2d = {
[0, 1, 2, 3],
[0, ...
2
votes
3answers
116 views
How can I make this recursive?
Including the declaration of the 2d Array, how can I make the following recursive? I would like it to iterate until there are no "children()".
self.buildRelationships = function () {
...
0
votes
1answer
28 views
Inconsistency with 2D array and for loop in Javascript
The following code results in the console printing "Z".
<script>
var x = new Array(new Array());
x[0][0] = "Z";
console.log(x[0][0]);
</script>
But if I replace x[0][0] = "Z" with a ...
0
votes
2answers
100 views
Best autocomplete for huge amount of select options from a 2d array?
For fields where are no more than thousand options available drop down lists seem to make the job. However, I have two arrays that flirt around dozens of thousands, so putting them to a comboboxes ...
0
votes
1answer
227 views
How to store an Object containing Array-Objects in local Storage By JSON
I have this Object containing pretty much anything i want to know about a workout. Yet when I Stringify the object the array-objects aren't stored or something.
This is my object i want to stringify:
...
0
votes
1answer
100 views
How to delete a specific element from array? with String Index
How to remove/delete a specific element from an array with as index a string instead of numbers?
this is my code:
workout.program = new Array();
workout.program["first"] = new Array();
...
0
votes
1answer
85 views
javascript 2D array iteration returning undefined function args
I am going through an exercise to recreate Conway's Game of Life and I have a basic strategy and I'm still very much in the "making it work" stage, so I know this looks pretty funny.
The problem I'm ...
1
vote
2answers
144 views
Can't get value from javascript array using variable in brackets
function swapProd()
{
var image = document.getElementById("prodImage");
var dropd = document.getElementById("prodDrop");
image.src = "images/ej/" + prodArrJS[dropd.value][2] + ".jpg";
}
the function ...
1
vote
1answer
114 views
Select a 2D array from a 2D array in javascript
I would like to select a piece of a 2D array from a large 2D array, I know how to do this using for loops but I was wondering if there is a more effective way of achieving this.
Example:
...
0
votes
1answer
81 views
How do I subset a 2-dimensional array in Javascript?
I have been looking around, and seen that it is possible to retrieve an element from a two dimensional array with something like myArray[x][y]. However what I am looking to do take everything but the ...
0
votes
0answers
111 views
Map ajax response data to google line chart
I'm using the following code to create a line chart using the google charts api.
var array = [];
ajaxPost(action, "getData", params, function(data) {
var response = ...
0
votes
1answer
36 views
Duplicating element in 2D Javascript Array
I have a loop which runs for the length of a 2D-Array. I need a way to duplicate one of the sub-arrays (the one loop is on) and add it to the end of the main array (making the loop go through that ...
0
votes
2answers
248 views
Convert C# 2D array (object [,]) to javascript 2D array
I am writing an APS.NET MVC application that reads data from DB and presents it with google charts.
I am reading the data from DB in C# into 2D array and need to pass it to my javascript code that ...
0
votes
1answer
118 views
Javascript - sort without sort
Problem in Javascript
I previously asked this question Javascript 2D array sorting - by numerical value with a solution provided using the sort function, which I have tried to use without sucsess. ...
0
votes
1answer
1k views
Javascript 2D array sorting - by numerical value
I've seen another couple of posts similar to this question, but none work for my scenario and at a lost how to solve this (such as Sort a 2D array by the second value)
I will explain the problem - ...
0
votes
3answers
2k views
JavaScript Multi-Dimensional Array
I have a Student, who is in many courses, which have many Modules for each course.
So far, I have got:
var myStudent = new MySchool.Student("Bart", "Simpson", "0800 Reverse", "Some Street", ...
0
votes
4answers
239 views
Returning 2-dimensional array via C#
I'm getting content from a database and returning it for Ajax processing via Javascript. Pretty simple stuff. The issue here is that I can't seem to find a good way to loop through the data and the ...
0
votes
0answers
307 views
Js CSV to 2d array
Im going to parse CSV into JS matrix array, i want to get array[row][column] from CSV string. I know at first i need to parse csv into table, i dont want to use libs like jquery and etc. I think to ...
1
vote
3answers
15k views
Creating arrays in Javascript
I am little new to javascript and I am having alittle trouble wrapping my head around making a 2d (or maybe i might need a 3d) array in javascript.
I currently have 2 pieces of information i need to ...
1
vote
6answers
474 views
Performing calculations on an Interger array in Javascript
I am trying add on dimension of an array together into a variable using a for loop. I have then using alert to show a pop up box with a value in it just to make sure it is working however the popup ...
4
votes
4answers
874 views
javascript array of arrays
I have the following arrays:
var dates = new Array();
var answers = new Array();
Once Populated, they will be the same length. What I need is an array that pair the same index values of the arrays. ...
4
votes
3answers
4k views
“cannot read property 0 of undefined” in 2d array
Does anyone know why this gives an error? I've been trying at it way too long and I can't seem to figure it out. It errors with "cannot read property 0 of undefined", but it is clearly defined. (or so ...
2
votes
2answers
645 views
How to create a 2d array of zeroes in javascript?
Is there an easy way to programmatically create a 2d array in javascript?
What I don't want:
var array2D = [
[0,0,0],
[0,0,0],
[0,0,0]
]
1
vote
3answers
365 views
Javascript 2D array issue - all elements are a copy of the final entry
I'm creating a javascript 2D array from an XML file which I then manipulate and filter as necessary before displaying on the page.
As I loop through the XML records, I manipulate the data a little, ...
2
votes
1answer
3k views
Traverse 2D Array (Matrix) Diagonally
So I found this thread that was extremely helpful in traversing an array diagonally. I'm stuck though on mirroring it. For example:
var m = 3;
var n = 4;
var a = new Array();
var b = 0;
for(var i = ...
1
vote
3answers
4k views
Javascript 2D array
I am trying to use 2 dimensional array in javascript for storing strings. But I am not able to get the values correctly. Below is my code.
var commentstore=new Array();
function ...
2
votes
2answers
3k views
Jquery atrr + 2D array issue
i have the following script and i can't find out how to use the value inside car[0]['img'] inside this $('#img2').attr('src',car[0]['img']);
im a JS noob so please explain me .. why jquery wont ...
249
votes
13answers
340k views
How can I create a two dimensional array in JavaScript?
I have been reading online and some places say it isn't possible, some say it is and then give an example and others refute the example, etc.
How do I declare a 2 dimensional array in JavaScript? ...
7
votes
3answers
14k views
2D Javascript array
Simply put, is there a way to create a 2D javascript array using similar syntax to this?
var newArray = [
[0, 1, 2],
[3, 4, 5],
[6, 7, 8]
]
