View Full Version : Need to get data from an array and display it as a new array

07-17-2012, 12:13 PM
This is my HTML so far, i'm not really sure what to do =/ What I am trying to do is to present data that has been populated from checking a checkbox. The new array was populated by using the last function. I then want to be able to present the new array using javascript inside of the html file.

What I need is some code to put into my html file to make use of the last function (add items) I need it to print the new array onto the screen.

This is the html i used to print the first array onto the screen, though it doesn't seem to work for the new one.

<script type="text/javascript">
for(x=0; x<=computer.length-1; x++) {

document.write("<tr id='"+x+"'><td><label><input type='checkbox'name='item' value='"+x+"'/> "+computer[x].split(",")[0]+"</label></td><td>"+computer[x].split(",")[1]+"</td><td> <input name='qty' id='qty' type='textbox' value='0' onchange='qtychange(document.myform.qty);'/> </td><td>"+computer[x].split(",")[2]+"</td></tr>");


Here is all my Javascript

var computer = new Array();
var selected = new Array();
computer[0] = "10001, Nvidia Geforce GTX 690, $1200";
computer[1] = "10002, Raedon HD 7950, $450";
computer[2] = "20001, Ivy Bridge i7 3770, $400";
computer[3] = "20002, Ivy Bridge i7 3770k, $420";
computer[4] = "20003, Sandy Bridge i7 2700k, $340";
computer[5] = "20004, Bulldozer FX-8150, $270";
computer[6] = "30001, Antec eleven-hundred, $120";
computer[7] = "30002, Coolermaster HAF-X, $170";
computer[8] = "30003, Antec three-hundred, $50";
computer[9] = "30004, Corsair 550D, $160";
computer[10] = "40001, INTEL-ASrock fatal1ty Z77 Professional Motherboard, $250";
computer[11] = "40002, INTEL-ASrock Z77 extreme9 Motherboard, $350";
computer[12] = "40003, AMD-ASrock fatal1ty 990FX Professional Motherboard, $240";
computer[13] = "40004, AMD-ASUS Sabertooth 990FX Motherboard, $260";

function check(field) {
for (i = 0; i <= field.length - 1; i++) {
field[i].checked = true;

function uncheck(field) {
for (i = 0; i <= field.length - 1; i++) {
field[i].checked = false;

function addItems(field) {
for (i = 0; i <= field.length - 1; i++) {
if (field[i].checked == true) {
if (computer[i] != null) {

Philip M
07-17-2012, 12:19 PM
document.write() is in effect obsolete. document.write() statements must be run before the page finishes loading. Any document.write() statement that runs after the page finishes loading will create a new page and overwrite all of the content of the current page (including the Javascript which called it). So document.write() is at best really only useful to write the original content of your page. It cannot be used to update the content of your page after that page has loaded.

You should use DOM methods to display the new array.

All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit.

07-17-2012, 12:21 PM
how? any suggestions on where to look? w3 schools is useless to me.

Philip M
07-17-2012, 12:47 PM
how? any suggestions on where to look? w3 schools is useless to me.



07-17-2012, 01:36 PM
well i'm trying to get a new array to be presented though it is made up using parts of the original array. How do i "id" the array or elements =/

No i do not want to change data, and no i do not want to get rid of the array I already have on the screen

I want to get things from one side to the other, like a shopping cart