JavaScript - Getting Average In 20 Input Number?how?

I need to allow a user to enter 3 values, then display the average between them... I am having some real issues with the average, Thanks!


var quiz1 = prompt("What is the score of your first quiz?", "")
document.write("Return Value: "+quiz1, '%',("<br />"));

var quiz2 = prompt("What is the score of your second quiz?", "")
document.write("Return Value: "+quiz2, '%',("<br />"));

var quiz3 = prompt("What is the score of your third quiz?", "")
document.write("Return Value: "+quiz3,'%',("<br />"));

average= ("quiz1"+"quiz2"+"quiz3") /3
document.write(average,("<br />"));

Hi i need to find the highest average from all of the averages entered in this code, but i have to use an if statement only, no arrays. Could some one help please?

Code:

// ** Work out average ** //  
    average= readingSum/totalReadings
 
    // ** Put average into a category and display everything ** //
     if(average<5)
     {
     catergory1=alert("Location is " + region + "\nNumber of weekly readings taken is " + totalReadings + "\nTotal of readings is" + readingSum + "\nAverage is" + average + "\nLocation is Dry");
     }
     else if(average>=5 && average<20)
     {
     catergory2=alert("Location is " + region + "\nNumber of weekly readings taken is " + totalReadings + "\nTotal of readings is" + readingSum + "\nAverage is" + average + "\nLocation is Normal");
     }
     else if(average>20)
     {
     catergory3=alert("Location is " + region + "\nNumber of weekly readings taken is " + totalReadings + "\nTotal of readings is" + readingSum + "\nAverage is" + average + "\nLocation is Wet");
     }
     
     // ** Find Highest average ** //

Thanks.

Hi,
First i don know if im posting at the right place or if you even take request here, feel free to direct me to the right place.

What i am looking for is someone to make a simple counter for me.
Basically i want that every time i press a certain key on my keyboard it will increase the counter amount and would then divide it by 60 every hour.
Actually im looking for it to only show that average and refresh every hour.
So it would start at 0 then update after the first hour and so on.
(I also need a graphical interface)
I have very few knowledge in coding and would very appreciate if someone could do that for me.

Thank you !





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01-10-2015, 11:39 PM #2
Old Pedant View Profile View Forum Posts

Supreme Master coder! Join Date Feb 2009 Posts 28,311 Thanks 82 Thanked 4,754 Times in 4,716 Posts

I don't think this is something you would do with JavaScript. I think you need a ".exe" (on Windows) program. And that's a lot more complex. The problem is your request to capture a certain key, presumably no matter what window is at the front. Normally, within a given window, you can only capture a key that is intended for that window. I don't think this is a very easy thing to do.

Hi all, I am in a non-major class called webprogramming working with javascript and I'm having an issue with a specific code wondering if someone could tell me what's wrong!

So I am suppose to compute and return the average of all values in a given array named customerBalance, the array holds the amount of "what customers owe my business" (I dont own a business) and each item in the array holds the "customers balance", i also have to use a for() to process the array and calculate the average and divide by customerBalance length, and finally return the average.

Here is my code so far

<script>

function average() {
customerBalance
for(i=0,i++)
sum(customerBalance)
total=sum/5






return average;
};

</script>


I know that this is COMPLETELY wrong, I am not sure on how i start typing the array, please don't be harsh I would really like to know how to do this.

Thank you and have a great day

I've now got to form an average of snowfall inputs, taken from looped prompts, however I'm not allowed to use arrays or functions...

Almost every example I see uses arrays, such as this one he
http://www.codingforums.com/showthread.php?t=4313

Is it possible to not use arrays to form the average? Please describe how to do this in general terms, as was highlighted in that link ^^^ I want to learn, not copy, although one can be derived from the other...

What I haveso far, assume all vars have been announced.
Code:

for (var d=1; d<=numofinputs; d=d+1)
	{ 
		input = prompt("Enter a data input" + d)
	}

Is it possible I'm attempting this in too general a manner? ie, running before I can walk.

I've written a program which will prompt for a number of cities, Prompt for the name of the city, then prompt for the number of snowfall readings of that city, and then prompt for each of these individual snowfall readings of that city. From this, it adds up each of the individual snowfall readings of that city, and will calculate an average by dividing this figure [the total snowfall] by the total number of readings for that city. This average is used to then classify the city as "not snowy", "mild", or "blizzard". I'm happy to PM my code to anyone willing to help out, as I realise this is a complex structure to visualise perhaps, but I can't post it publicly.

I now have to select the city with the highest average, and name it in an alert output. How is this possible.

Note, I'm not allowed to use functions or arrays. Prompts, alerts, if-then-else, for and while loops are all I can use.

I have a function below where every time a question is submitted, it will add a new row in the table with a textbox which allows numbers entry only. My question is that I don't know how to code these features in this function:

1: I want the text box to be between 0 and 100, so if text box contains a number which is above 100, it will automatically change the number to the maximum number which is 100.

Does any one know how to code this in my function below in javascript:

Code:

function insertQuestion(form) 
    {   
    
         var row = document.createElement("tr");
         var cell, input;
    
    cell = document.createElement("td");
         cell.className = "weight";
         input = document.createElement("input");
         input.name = "weight_" + qnum;
         input.onkeypress = "return isNumberKey(event)";
         cell.appendChild(input);
         row.appendChild(cell);
    }

I've been messing with this code for about a couple of hours, and I did everything down to the wire..yet still I am unable to get it to work. When I input the numbers, and click off to the side nothing appears down at the final textarea of the form which is suppose to show the average.

I've tried just about everything, sadly all I have to go by is other example codes, and the very intricate instructions which states I must pass the values to the calcAvg() to the second function of performCalc(), which I did, and then I assigned the var calcResult another value. From there I did the return..and after that I'm rather loss as to what to do next to get this code to work, any tips?

Code:

 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Calculation Average</title>
<script type="text/html">
/* <![CDATA[ */


function calcAvg() {
var calcResult=document.numbers.number1.value + document.numbers.number2.value +document.numbers.number3.value + document.numbers.number4.value + document.numbers.number5.value
}
function performCalc() {
var calcResult = calcResult / 5
return calcResult;
}
			
/* This is what I got so far, as you can see I need plenty of help!*/
</script>

</head>
<H1> Calculate Average of Numbers</H1>
<body>

<form action="" name="numbers">
<table>
<tr>
<td>
<tr>
<td>Enter the five numbers:<br />
</td></tr>
<tr><td>
<input type="text" name="number1" size="3"
onchange="calcAvg()" text="0" /></td>
</tr>
<tr>
<td>
<input type="text" name="number2" size="3"
onchange="calcAvg()" text="0" /></td>
</tr>
<tr>
<td>
<input type="text" name="number3" size="3"
onchange="calcAvg()" text="0" /></td>
</tr>
<tr>
<td>
<input type="text" name="number4" size="3"
onchange="calcAvg()" text="0" /></td>
</tr>
<tr>
<td>
<input type="text" name="number5" size="3"
onchange="calcAvg()" text="0" /></td>
</tr>
</table>
</form>


<form action="" name="averageResult">
<p>
Estimate average:
<input type="text" name="average" size="5"
style="border-style: none; border-color:
inherit; border-width: medium;
background-color: Transparent" text="0" /></p>
</form>
</body>
</html>

I am trying to figure out how to make a random number I can plug into a script count down from that number at certain times of the day until it reaches 0. I would like it to reset itself at midnight every day. I'm trying to make it work with a script I found on here that resets itself at midnight every day. So instead of it counting down too fast, it would count down to the next number after a randomly generated number of minutes until it reaches 0. But it wouldn't necessarily have to end at 0 at midnight. It could go from 845 to 323 at the end of the day at a slower pace. Is that possible?

When I used toFixed() method on a number, I thought that this method round a number to a specified approximation, but I got a surprising result, the number became string!
15.23689 .toFixed ( 2 ) ==> "15.24"
So does it convert the number into string?

I am thinking this should be fairly easy but yet I am not getting far. I want to have a form with a single text imput field for a zip code. Depending on which zip code the user enters will determine which url they will be sent to. If they enter a zip code which is not in the script, they would be sent to a default url.
I am also assuming this can be accomplished with javascript.

Any help is greatly appreciated.

I have a problem with adding new inputs to a form (if and when required),

Internet Explorer is fine but in Firefox if any previous input fields are filled when the more button is clicked they get reset to blank.

JS:
Code:

fields = 0;
function addInput() {
if (fields != 100) {
document.getElementById('input').innerHTML += "<input type='text' name='input[]' size='30' />";
fields += 1;
} else {
document.getElementById('input').innerHTML += "<br />Maximum 100 fields allowed.";
document.form.add.disabled=true;}
}

form:
Code:

<form action="index.php" method="post">
<div id="input">
  <input type="text" name="input[]" size="30" maxlength="15" />
</div>

<!-- button -->
<div id="more">
  <input type="button" onclick="addInput()" name="add" value="More" />
</div>
<!-- // button -->

 <input type="submit" name="submit" value="Submit" />

 </form>

as usual any help is appretiated ..

Hi,

i want to set an input value to the same value as the input selected from another input on the same form

so when the user selects input 1
i want the hidden input2 to get the same value

im guessing i use onsubmit because its hidden so there wont be a focus or blur

this would be part of the input

Code:

onsubmit="(this.value = this.othervalue)"

othervalue being the other input name="othervalue"

is that the correct syntax

Hi,

i have an input value array for customer ids, i also need to make a copy of that array into another input element on submit to use for another process.

So far here is what i have come up with regarding the js


the current html is this

Code:

<!-- original input -->

<input id="cb<?php echo $i;?>" name="cid[]" value="<?php echo $commissions[$i]['id'];?>" onclick="isChecked(this.checked);" type="checkbox" />


<!-- this is new html input which  is outside the $i loop that i need a copy of cid[] stored on submit

<input type="hidden" name="ids[]" onsubmit="valueTovalue();" />


<!-- here is the js so far --> 

<script type="text/javascript">

function valueTovalue()
{

 var valin = document.adminForm.cid.value;  //cid is the array cid[]
 document.adminForm.ids.value = valin; //copy the array to the new input element array ids

}

</script>

so basically if they click 1 cid then ids will also show 1, if they click all cid then ids will show all as well.

will that work the way i have it, am i even close here..

thanks

update: what i have seems to work fine for text values or string values but not for arrays, what am i missing that it wont copy an array?




Array
(
[cid] => Array
(
[0] => 1
)

[task] => remarksonly
[remark] => hhhyyy
[boxchecked] => 1
[ids] => Array
(
[0] =>
)

)




am i getting closer lol


Code:

function valueTovalue()
{
 var valin = cid.concat;  
 document.adminForm.ids.value = valin.concat; 

return(true);

this has to be close i hope

Code:

document.adminForm.ids.value = [].concat(document.adminForm.cid);

I am delving into the coding world and while I understand the basic principle of cookies, conditional statements, arrays, etc... I am still learning how to properly implement them. Any asistance with the following situation would be greatly appreciated and help with my learning as I try to reverse engineer the logic. I have looked around the web and this forum with little success. If the situation below is too complicated, I would really appreciate even a shove in the right direction regarding the logic.

-----------------
How could I show a preset counter which counts up from a preset, beginning number toward a preset, end number? I imagine the increment and speed is set be the difference between the two numbers and a timeframe.

Assumptions:
I would rather not set the increment but edit the end number to show a steady increase. As I update that number, the increment adapts dynamically.

I would want the number/script to be useful, so it should not refresh to the beginning number on each page load (i.e. num=0). When a visitor comes to the page, it must seem like the counter has been steadily been increasing in their absence.

Coke or Pesi did something similar one time regarding cans sold to date (doubt it was plugged into a DB somewhere but rather based on a steady sales figure) and it was pretty cool.

All the best!