Can't get my array to be consecutive instead of random

keytone · January 12, 2015

Hello again everyone! Yes indeed, I come groveling back with another question.

I'm trying to let the user click to go through an array of quotations.

It works fine, but I can only get it to work if I use Math.round and Math,random

I don't know how to use anything but random

I want to just go through the array in order,then start over.

Maybe I need to do do something the variable num

I don't know and I've got myself so confused that I'm tearing my hair out, and if you see my picture you can see I don't have much to spare!

The page: http://jdsplace.us/generator/funnyquotes.html

Here's the code:

<html>

<head>

<title>

A Few Funny Quotes

</title>

<HEAD>

<style>

.row

{

padding-left:10px;background-color:white;

font-family: verdana, san-serif;font-size: 16px

}

</style>

var arr= new Array();

arr.push("MISUNDERESTIMATED---They misunderestimated me.---Bentonville, Arkansas, on November 6, 2000;");

arr.push("And they have no disregard for human life.----George W. Bush-- on the brutality of Afghan fighters");

arr.push("Throughout our history, these immigrants have helped transform 13 small colonies into a great and growing nation of more than 300 people.-George Bush--Charlottesville, Virginia, July 4, 2008");

arr.push("VICTORY and SUCCESS---'So long as I'm the president, my measure of success is victory, and success.'--On Iraq, in Washington, D.C., on April 17, 2008");

arr.push("------------I Wish [the Enemy] All the Very Best------------'I'm telling you there's an enemy that would like to attack America, Americans, again. There just is. That's the reality of the world. And I wish him all the very best.'-Washington,D.C., on January 12, 2009");

arr.push(" 'I'll be long gone before some smart person ever figures out what happened inside this Oval Office.'-- Washington, D.C., on May 12, 2008");

arr.push(" 'Awesome Speech! Thank you, your Holiness. Awesome speech!' --To Pope Benedict, in Washington, D.C., on April 15, 2008");

arr.push("------------------Do You Ever Hear Voices?----------------- 'People say, well, do you ever hear any other voices other than, like, a few people? Uh well...Of course I do.'-----------In Washington, D.C., on December 18, 2008");

arr.push("--------------------Abducted in the Oval Office--------------------'I remember meeting a mother of a child who was abducted by the North Koreans right here in the Oval Office.'--In Washington, D.C., on June 26, 2008");

arr.push("************* $4-a-Gallon Gas? ! **************** 'Wait a minute! What did you just say?-- You're predicting $4-a-gallon gas? ... That's interesting. I hadn't heard that.---In Washington, D.C., on February 28, 2008");

arr.push("******** It's Going to Take a While to Unthaw******** 'This thaw took a while to thaw, it's going to take a while to unthaw.'--On liquidity in the markets, Alexandria, Louisiana, on October 20, 2008");

arr.push("*******I've Abandoned Free Market Principles******** 'I've abandoned free market principles to save the free market system.'--In Washington, D.C., on December 16, 2008");

arr.push("---I Didn't Want to be the President During a Depression---************************************************ 'So I analyzed that and decided I didn't want to be the president during a depression greater than the Great Depression, or the beginning of a depression greater than the Great Depression.'--In Washington D.C., on December 18, 2008");

arr.push("Dont stay in bed, unless you can make money in bed.- George Burns 1896-1996");

arr.push("Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.- Martin Luther King Jr. 1929-1968");

arr.push("Not a shred of evidence exists in favor of the idea that life is serious.");

arr.push("Dont be so humble - you are not that great.- Golda Meir 1898-1978 to a visiting diplomat");

arr.push("Political correctness is tyranny with manners.- Charlton Heston 1924-");

function rotate()

{

var num= Math.round(Math.random()*18);

add(num);

}

function add(i)

{

var chi = document.createTextNode(arr);

var tab1 = document.getElementById("add1");

while(tab1.hasChildNodes())

{

tab1.removeChild(tab1.firstChild);

}

tab1.appendChild(chi);

}

</script>

</HEAD>

<BODY background="/background_images/b2.gif">

<a href="/new/interesting/interesting1.html"><img src="/gif/backmarble.gif" border="none"></a>

<table align=center style="background-color:#cc9900";>

<tr><td background-color:#cc9900 align=center width=400 style="font-family:Times New Roman;"><b>Bush's Best !</td></tr>

<tr><td id=add1 class=row width=500 align=center>click Next for a Famous Quote</td></tr>

<tr><td align=center><input type=button color="blue" value="Next Quote" border=0 onclick="rotate()"></td></tr>

</table>

</center>

</body>

</html>

Would one of you gurus tell me what I'm doing wrong? I appreciate you very much.

keytone

Ingolme · January 12, 2015

Make a global variable, let's say index.

var index = 0;

In your rotate function, show the element at index index, then add 1 to index. To ensure that the variable index is within the bounds of the array we can use the % (remainder of division) operator.

function rotate() {    // This is your other function which doesn't need to be changed    add(index);    // Add 1 to index    index++;    // Same as index = index % arr.length;    index %= arr.length;}

keytone · January 12, 2015

:good:

Thank you very, very much! You truly are the Wizard of foxes!

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Can't get my array to be consecutive instead of random

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