# Random Number Within Array II

Jul 16, 2009

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.

## Prevent Repeating In A Random (Math.random) Array?

Aug 6, 2009

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(

[Code]...

## Shuffle Array Elements (3 To End Of Array) In Random Order

May 6, 2007

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.

## Add The Value Of A Random Number To Another Value?

May 22, 2011

I can generate a random number between 1 and 9,

( var rand_no = Math.floor( 1 + Math.random() * 9 ); )

but I want to add that random number to a value that is enterred into an inputbox and get a total. How can I do this using Javascript and put the result into a hidden field. I will also need to use that same random number in another place on another form .

## Random Number But Only Once?

Aug 31, 2011

I'm trying to apply something in my forums, where a member could post something let's say:"Hi, I am number 1, 6"And what would happen is that, a number from 1 to 6 would be the content, for example, it would be:"Hi, I am number 3"But if you refresh the page, it would still be the same number. Like it won't be randomized again.So how do I make a javascript/html code that would make a one time number randomizer.

## Correct Syntax For An Nested Array Where Each Array Element Has 3 Elements, A Number And Two Text Strings?

Sep 17, 2010

What is the correct syntax for an nested array where each array element has 3 elements, a number and two text strings?

Code:

array = ['1, Old Man, Old Man','2 Black Sheep, Black Sheep',....]

should the text strings be in double quotes("")?

Code:

array = ['1, "Old Man", "Old Man"','2 "Black Sheep", "Black Sheep"',....]

## Random Number - Multiple Of 10, Between 0 And 470?

May 6, 2011

How would I generate a random number between 0 and 470 at multiples of 10 including 0 and 470?

## Generating Random Number

Feb 28, 2006

In the forum, it usually talked about generating a number between 1 or 0 to that certain value using something like Math.round(Math.random() * 200); or Math.floor(Math.random() * 200);

But what do you do if you want to generate a number between 201 and 400.

## Random Number Generating

Aug 27, 2006

I run a random number generating service for a RPG message board I go to, and my website generates only numbers from 1-100. How could I script this so that the user can get random numbers between 1-X?

## Regenerating A Random Number?

Apr 23, 2009

I set myself the task of creating a button which, when pressed, switches the background color randomly. It seems to work well enough but the random number it works from only generates once at page load.As a workaround, I added a second 'Reset Page' button, but I really want just one button that switches the page color every time you prod it. Any ideas how to reset the random number to achieve this?Here's the code.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">

[code]....

## How To Fill Random Number

Jun 19, 2009

say i have:

document.writeln("0")
document.writeln("1")
document.writeln("2")

[code]....

## Make A Random Number Between 1 And 1,000?

Jun 30, 2010

I am trying to make a random number between 1 and 1,000. I have a code that seems to work correctly, but I don't completely understand it and after looking online I think it might be wrong. Code: var rnd = Math.floor(Math.random()*999)

## Random Number Generation Different For IEs?

May 10, 2009

All the numbers should match. It's not working right in any version of IE I test it in (6, 7 and 8). I'm also using jQuery, fyi.When you click the button to stop the numbers, I'm setting a variable named winner to a number (3, 4 or 5). Right now, I have it set to 5. This number determines how many of the slots match:[code]I'm then generating a random number (0-8) to base all the other numbers off of . Three numbers will always match, so I'm setting two more variables to match that random number.[code]Then I do some conditionals to check the value of winner. If it's 4, I set the 4th number to random number, then generate a random number for the 5th spot while it doesn't equal randomnum. I do something similar if winner is set to 5.[code]The goto trigger sends the scroll to the specified index according to slotnum(1-5).I'm waiting to hear back from the plugin developer to see if it's something to do with that.However, I just want to make sure my logic in generating those numbers is sound. It works perfectly in FF, Opera and Chrome but (surprise!) not in any of the IEs (tested in 6, 7 and 8).

## Button Prints Out Random Number

Sep 23, 2011

I am trying to make it so that when you press a button it prints out a random number. This is what I currently have:

Code:
<script type="text/javascript">
function randomnumber(randomForm){
var x=Math.floor(Math.random()*11);
document.write(x);
}
</script>
<FORM>
<INPUT type="button" value="Print Number" name="button1" onClick="randomnumber(this.form)">
</FORM>

When I click on the button it just clears all the text from the page and clears the bgcolor. A random number then appears at the top left corner. I am trying to make it so that when I press the button it prints out a random number just above or below the button. Is this possible? if so how do you set it up?

## Generate Random Number Within A Range?

Jun 30, 2009

I am trying to generate random number within a range. My code at the moment is

Code:

var uppermax = 100; var uppermin = 10; var upperdiff = uppermax - uppermin; var lowermax = 10; var lowermin = 0; var lowerdiff = lowermax - lowermin; var rand = Math.floor(upperdiff + 1) * Math.random() + uppermin; alert(rand);

I know math.floor is supposed to round down to the nearest integer, but the generator is still coming back with a float.

## Create Random Number Between 1 - 50 With Decimals?

May 24, 2011

How would I go about creating a random number between 1-50 that COULD include whole numbers, decimals to the tenth, hundredth and the thousandth place?
Ex) 2.145, 3, 5.8, 41.002, 10.12, 7, 18.023, 33.2

Also, if the only way to do it is to put trailing zeros to the thousandth place that's fine as well
Ex) 2.145, 3.00, 5.800, 41.002, 10.120, 7.00, 18.023, 33.200

## Random Number Changes Twice While Posting Form?

Aug 4, 2011

I have a form and select menus. I am posting it ajax post method and loading the same page with load method as you see in codes. There is a random number genarator. I want to change this random number once a click submit. If i do not load the same page this number does not change. Therefore I use both post and load methods like in demo. However when i do like this there is a problem which is random number have been generated twice somtimes. If you click submit button successively you will see that the number on left top corner sometimes changes twice a click. Why it is so and how can i correct it.

[Code]...

Feb 8, 2008

I am trying to generate a random number each a person visits a page but would like that number to not change if they leave the page and use their browser back button to return. My code is below and the problem I have is that upon browser back the value in the if statement is still "Null" despite having been changed the first time the script ran.....

## Display A Random Number Using InnerHTML?

Oct 15, 2011

I trying to display a random number using innerHTML

Here's my code:

HTML Code:
<html>
<script language="JavaScript">

[Code].....

## Getting Random Number To Show Up In Text Box?

Dec 4, 2010

I cant get a random number to show up in my text box.PHP Code:

function Random() {
var Random = Math.floor(Math.random() * 10);
}

[code]....

## Random Number Generator Returning NaN's?

Mar 25, 2011

the script is supposed to allow the user to enter a minimum and maximum value and then enter the number of random numbers to generate between the min and max.

then it is supposed to floor these numbers and post the in a single column table. my script is writing the table correctly but the numbers arent coming through

Code:
<table border = "2">
<script type="text/javascript">
var min = window.prompt("Enter the 1st number","");

[Code]....

## Do Action Based On Random Number

May 5, 2009

The following code is supposed to provide a different alert message when a page is loaded, based on a random number generated on load. Can anybody see what is probably a very obvious problem that I just can't see?[code]

## Non-repeat Random Number Generator?

Aug 14, 2011

I've looked everywhere for a random number generator which doesn't repeat. Tried loads and none have seemed to work.I'm making a quiz, 5 questions so far.This button, in html, generates the next random Q:But I need a random generator which fires them off only once. Anyone have suggestions for a non-repeating random number gen which will work? Even the one now seems to have some slight error associated with it. The one's ive tried so far haven't worked..

## Random Number Into A Form Field

Aug 25, 2011

i'm trying to write a code that generates a random number between 1 and 9999 on page load, concatenates it with "pwn" at the start, and adds it to a disabled form text input box. this is the code i have below, but it's not working at all.[code]

## Configure Random Number Generator To Only Execute Once?

Feb 20, 2011

I scripted a javascript guessing game and I am not sure how I can configure the random number generator to only generate one number and then stop.code...

## Displaying The Same Image A Random Number Of Times?

Mar 7, 2011

I'm trying to display the same image several times using javascript. It can range anywhere from 0 to about 50. I'll also have its' location determined by the user click and each image will timeout after a short period of time. I figure i'll have to create a new object for each image that is added and remove it after it times out, but my problem is I dont know how to tell the HTML code inside the <body> tag to display the same image for each click I make.