I have an array and a button to select a random integer from the array, how do I make it so that it selects every integer once til all are selected, then it starts over again?For example, an array has these:
A
B
1
2
Q
F
So you press the button a number of times, and you get:
Q
B
1
F
A
2
Instead of:
1
Q
A
1
B
A
I've been asked to do the following using javascript:
-Create a function named randInt() with one parameter of "size". Declare a variable named "rNum" equal to a random integer between 1 and the value of the size variable. Return the value of the "rNum" varialbe from the function.
-Create a function named getQuote() with one parameter anemd "qNum". The function should create an array named mtQuotes with five quotes; there should be no quote for the array index "0". Return the value of the mtQuotes array for the qNum index.
- In the div element of "quotes" insert a script with the following commands: Declare a variable named "randValue" which is euqal to a random integer between 1 and 5 (use the randInt() function). Declare a variable named "quoteText" containing the quote whose array index value is equal to randValue. Write the value of quoteText to the web page.Here is what I have...it returns undefined.
<html>
<head>
<script type="text/javascript">[code]....
So, I am attempting to select a random entry from an array, and then make it so that particular entry will not be selected again until every entry has been selected. Basically, I don't want to see any of the same entries, until all of the entries in the array have been selected.
So if this were my array....
keywords =
[
"ppc",
"games",
[Code]....
since meta was selected a second time before everything had been selected once.
I would like to see something more like
meta, advertise, gaming,ppc, welcome, home, games, advertise, ppc, since this did not select any entry multiple times before every entry had been randomly selected.( the second loop started at the second "advertise" in case you didn't catch the differences.
But as you can see from the code that I have posted above, I do not know how to do this. I have seen examples where the entries that were randomly selected, were actually deleted from the array entirely but this is not what I want to do. I just want every entry to be selected once, and then for the process to be restarted.
I've looked for a solution to this issue, but it seems like a little different scenario than other situations. I made a system for generating friend requests on Facebook. I have a grid that is 6 x 3, for a total of 18 cells. Each cell has a picture in it, and the picture is linked to the Facebook friend request page. My problem is that since each cell is populated at random from the array, I'm getting lots of repeats. For example, some picutures are in 5 cells, and some are in none. I'm trying to figure out how to make it so that once a picture is used once in the grid, it does not get used again in the same grid.I still want every cell filled at random on each page load, I just want to prevent the repeating.
Here's my current code:
<script type="text/javascript">
var vip_list=new Array(
new Array('http://profile.ak.fbcdn.net/v225/1616/88/s1220771654_2158.jpg','http://www.facebook.com/addfriend.php?id=1220771654'),
new Array('http://profile.ak.fbcdn.net/v223/1233/29/s904885342_9055.jpg','http://www.facebook.com/addfriend.php?id=904885342'),
[Code]...
First script, 'xxx.js' returns value 'document.write('integer');
So in HTML:
<script language='javascript' src='xxx.js'></script>
will write ie. 123 on my page in browser.
Can I get this integer or text 'document.write('integer')' to variable in
another script? So it would be something like this:
<script landuage='javascript>
a=<script ... src='xxx.js'></script>;
a*=20;
document.write(a);
</script> ...
I have some asp:radiobutton lists that need to update a label with the sum of their values each time a user selects a new value. I am brand new to javascripting and would like some insight on how to get this done. I have inserted my code below. :thumbsup:
<asp:Label runat="server" Text="Greeting:" /> <asp:Label runat="server" ForeColor="Red" ID="lbl_GreetingScore" Text="0" />
<asp:RadioButtonList ID="rdb1_1" runat="server" RepeatDirection="Horizontal">
<asp:ListItem Selected="True" Text="N/A" Value="4" />
[Code]....
I am trying to learn how to do this one thing with JavaScript and can't seem to find anything on the internet. I have learned about loops and arrays and some other useful stuff. I've been looking for 2 days straight. I have gotten close though.
I am trying to have a textbox on the page and a button below it. A statement above the textbox should ask the user to enter a positive integer and then click the button. When the button is clicked the results from 0 to that number should appear below the button. Should look like this
please enter positive integer.
6
BUTTON1
1
2
3
4
5
6
I have been trying night and day for 2 days now and It's driving me insane.
I'd like to reorganize the third, fourth, fifth and sixth, as well as any
elements thereafter in an array in random order:
var a = new Array('first','second','third','fourth','fifth','s ixth','etc')
In other words, the first, second and third element should remain in
position 0, 1 and 2, while the fourth, fifth and sixth, etc. should appear
in random order.
What happens is that when I click on a button, a random string from the RandomString variable appears below the button. e.g I click on the button and it displays 'AAB' and then if I click on the button again it may display 'AAE' and etc.
The problem is that sometimes it displays 'undefined'. I don't wanit 'undefined' to appear but why does it sometimes display 'undefined' rather than a Random string.
Below is the code:
In http:www.dreaminco...wtopic51264.htm a code was proposed for generating a random number within an array and then printing it into the html document using document.write.Is it possible to go one step ahead and feeding the result into an html href function? [code]is the random array member generated by the javascript.
View 3 Replies View RelatedI am trying to write a function that will take a random array as a var and split it into two arrays. My problem is I don't know how to show the split. I need to cut the array at the mid index. How do i write that so no matter what the length is the middle of the index is selected. I have wrote some code but the if isnt working and the var to set the two array lengths is not right Code:
[Code]....
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.
I have some image URLs stored in an array. I then want to be able to print out one of those image URLs randomly on page load. What would be the best method to do this in jQuery?
[Code]...
Code:
<html>
<head>
<script type="text/javascript">
[code]...
how to call the values at random in the arrays: article, noun, verb, preposition ?
I am learning Javascript from this book I got, and I am trying to do one of the "challenges" in the Hangman example, and that is to add on more 8 letter words to it and have it select by random. I am assuming that it's asking me to do this with arrays, but I have no idea how to implement that on this while having it select randomly.
<html>
<head>
<title>Hangman</title>
<script language="JavaScript" type="text/javascript">
</script>
</head>
[Code]...
I have an array containing 100 different values. How would I randomly pick 25 of them for display? For now I do: for (var i=0; i<markers.length && i<25; i++) {
html += markers[i].name + '<br />';
}
Which of course returns 25 values but always in the same order which is not what I want. PS. My array could also contain only 20 values, in which case I would like the function to display the 20 values randomly sorted.
does anyone know how to scramble the "box#" in the codes below? Ultimately, I want the checkboxes to be in different order each time I access the web page?
<script lanugage="javascript">
function countChoices(obj) {
max = 3; // max. number allowed at a time
box1 = obj.form.box1.checked; // your checkboxes here
box2 = obj.form.box2.checked;
box3 = obj.form.box3.checked; // add more if necessary
box4 = obj.form.box4.checked;
box5 = obj.form.box5.checked;
count = (box1 ? 1 : 0) + (box2 ? 1 : 0) + (box3 ? 1 : 0) + (box4 ? 1 : 0) + (box5 ? 1 : 0);
if (count > max) {
alert("You can only choose " + max + " of the 5 nominees.");
obj.checked = false;
}
}
</script>
<form>
<input type=checkbox name=box1 onClick="countChoices(this)"> Homer Simpsons <p>
<input type=checkbox name=box2 onClick="countChoices(this)"> Ground's Keeper Willie <p>
<input type=checkbox name=box3 onClick="countChoices(this)"> Mr. Burns <p>
<input type=checkbox name=box4 onClick="countChoices(this)"> Barney <p>
<input type=checkbox name=box5 onClick="countChoices(this)"> Chief Wiggum<p>
</form>
I'm creating a tool which will who a random image every time I press a button, when the image is clicked it will open a new tab which will show a website. I can tell you I've succeeded in all this, but I was wondering if there is any way in which I can let my "generator" show 1 standard image at first, and if this is even possible never show that image after it has been showed. The image will explain that the you have to press the button to go to the next image.The Code:
<script language="JavaScript">
images = new Array(4);
images[0] = "<a href = 'URL' target='name' onclick='window.open ('URL')' ><img src='img1.jpg' alt='tag'></a>";
[code]....
I have a quick question with multiple array and random numbers. If i generate my random numbers in one array, how would i take a selection of those numbers and put them in another array?
Ex: array 1: 25, 34, 38, 40, 22, 49
Want to move numbers between 30 and 50 to another array.
array 2: 34, 38, 40, 49
Is it as simple as for loops and if statements setting the conditions? do i use a sorting method? (selection? bubble?)
My array contains 15 value I want to random pick 5 value:
[Code]...
How to random pick from all elements with no repeat of the same content. e.g. if myArray[0] is picked then myArray[12] will not be picked again. (because they have the same value "a")
I am taking a Javascript class and the teacher assigned this: Quote: Write a script that uses a random number generation to create sentences and name it sentences.html. Use five arrays of strings called: uppercase article (uarticle), noun, verb, lowercase article (larticle), and preposition. You will need to use the correct case for the article arrays. Create a sentence by selecting a word at random from each array in the following order: uarticle, noun, verb, preposition, larticle, noun. You can find examples of generating random numbers in both Fig. 8.6 (dice-rolling) and Fig. 8.7 (random image) of Chapter 8.
The arrays should be filled at minimum, as follows: the article array(s) should contain the articles: the, a, one, some and any. The noun array should contain the nouns: boy, girl, dog, town and car. The verb array should contain the verbs: drove, jumped, ran, walked, and skipped. The preposition array should contain the prepositions: to, from, over, under and on. If you would like to add more words, adjust the arrays appropriately.
[Code]...
I am working on a problem that wants me to use a for loop to give an array a random number for each of it's elements (total of 10) and then using a second loop to add them up and display the result.
<script type="text/javascript">
var sum;
var i=0;
[code]....
Ok heres my deal. I want a javascript that generates a random picture everytime it is refreshed i got this code which is here:
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
var theImages = new Array()
[code]....
I'm trying to generate random numbers 0-8 to use to access array indices.[code]Every once in a while, I'm getting a -1 in my console log. I read on a site that this line:[code]will generate a number between 0 and 10 (so 1-9).How is -1 being generated?
View 4 Replies View RelatedI'd like to know if there's a possibility to select a random image .. but .. from a directory.
I've seen many posts regarding this subject, but all of them show the procedure once you have the image names inside an array.
I need to know how to select a random image from a directory that's filled with them, like let's say /public/images
Does anyone have a script, that can display a random image of the images I select?:confused:I'm going to use it for a type of captcha. I think this would be easier in javascript, so yes I am in the right section.
View 7 Replies View Related