JavaScript - Find Factors Of Number And Pick Two Closest To Middle?

i am using trying to use the following code to find the prime factors of a number:
Code:

function prime(number){//returns prime factors of input in array
	test=2;//number to test divisibility
	factor_count=0//counts number of factors
	factors=[];
	while (test<number){
		quotiant=number/test
		quotiant_round=Math.floor(quotiant);
		if(quotiant==quotiant_round){//number is divisible by test
			factor_count=factor_count+1;
			factors[factor_count]=test;
			number=number/test;
			test=test-1;//counters adding one
		}
		test=test+1;
	}
	return (factors)
}

running it manually in chromes JavaScript console i get:
prime(2)=[]
prime(4)=[undefined, 2]
prime(8)=[undefined, 2, 2]
prime(6)=[undefined, 2]
prime(9)=[undefined, 3]
prime(27)=[undefined, 3, 3]
prime(18)=[undefined, 2, 3]
i am using the = to separator my input from its output

I need some help putting the factors of a number (y) into an array

For example if y = 20: [1, 2, 4, 5, 10, 20]

Once I have this, I can use it to factor a quadratic:

(ax = c)(bx = d)

if c = 3 and d = 5 then I could check if 1c was a decimal, if 20d was a decimal and then vice versa

Basically, I can use these numbers to see if b or d is a whole number and if it isn't, try the next one.

If none of them are, then I can do y(ax + c)(bx + d)

Thanks!

Hi, greeting all.

could you help me please to edit this javascript, I'd like to add a message alert if the values stopped on (777)

Live Demo
Code:

<script language="JavaScript">

function begin() {
 i=0;
 document.form.col1.value="V";
 document.form.col2.value="V";
 document.form.col3.value="V";
  roll(speed);
}
function roll(speedB) {
  if (document.form.col1.value=="V") {
     document.form.a1.value=Math.floor(Math.random()*9) +0  ;
  }
  if (document.form.col2.value=="V") {
   document.form.a2.value=Math.floor(Math.random()*9)+0  ;
  }
  if (document.form.col3.value=="V") {
   document.form.a3.value=Math.floor(Math.random()*9)+0  ;
  }
   timerid=setTimeout("roll("+speedB+")",speedB);
}
function stop(col) {
  if ( col==1) if(document.form.col1.value!=" "){
   document.form.col1.value=" ";i++;}
  if ( col== 2) if(document.form.col2.value!=" "){
   document.form.col2.value=" ";i++;}
  if ( col==3) if(document.form.col3.value!=" "){
   document.form.col3.value=" ";i++;}
 //  speedB=500000;roll(speedB);
}
</script>

can someone give me the code to display drop down date with default todays date selected...format dd/mm/yyyy
i found the code to display month in mon format..what is to be modified to get in mm format here
______________
<script>
var monthtext=['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sept','Oct','Nov','Dec'];

function populatedropdown(dayfield, monthfield, yearfield){
var today=new Date()
var dayfield=document.getElementById(dayfield)
var monthfield=document.getElementById(monthfield)
var yearfield=document.getElementById(yearfield)
for (var i=0; i<31; i++)
dayfield.options[i]=new Option(i, i+1)
dayfield.options[today.getDate()]=new Option(today.getDate(), today.getDate(), true, true) //select today's day
for (var m=0; m<12; m++)
monthfield.options[m]=new Option(monthtext[m], monthtext[m])
monthfield.options[today.getMonth()]=new Option(monthtext[today.getMonth()], monthtext[today.getMonth()], true, true) //select today's month
var thisyear=today.getFullYear()
for (var y=0; y<20; y++){
yearfield.options[y]=new Option(thisyear, thisyear)
thisyear+=1
}
yearfield.options[0]=new Option(today.getFullYear(), today.getFullYear(), true, true) //select today's year
}

</script>

My array contains 15 value I want to random pick 5 value:

Code:

 myArray[0] ="a";
 myArray[1] ="b";
 myArray[2] ="c";
 myArray[3] ="d";
 myArray[4] ="e";
 myArray[5] ="f";
 myArray[6] ="g";
 myArray[7] ="h";
 myArray[8] ="i";
 myArray[9] ="j";
 myArray[10] ="k";
 myArray[11] ="l";
 myArray[12] ="a";
 myArray[13] ="b";
 myArray[14] ="c";

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 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 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?

Dear Javascripters.

I have some code that dynamicly adds textfields, the code works execpt for that I cant figure out how to place the textfield unded the textfield that calls on the function, it now places the new textfields at the bottom of the page..

Ive pasted my code on http://pastebin.com/m2fe9ba26

As soon as you focus in the TextField Productspecialisme: (max. 10) the javascript gets called on..

Thanks in advance.
Regards

Apologies for the confusing title.

I have a scipt

Code:

....style: google.maps.NavigationControlStyle.SMALL
 }
 });
 <?
 $query = mysql_query("SELECT * FROM `family_support` WHERE 1");

 while ($row = mysql_fetch_array($query)){    
 $org_name=$row['org_name'];
 $lat=$row['lat'];
 $long=$row['long'];
 $org_address=$row['org_address'];
 echo ("addMarker($lat, $long,'<b>$org_name</b><br/>$org_address');\n");
 }
 ?>
 center = bounds.getCenter();
 map.fitBounds(bounds);

 }
 </script>

I want the $query to be the same as another query set up further down the page;
Code:

$sql_result= "SELECT * FROM family_support WHERE org_name LIKE '%$org_name%'";

if ($area != 'All') {
$sql_result .=" AND area LIKE '%$area%'";
}
if ($services != 'All') {
$sql_result .=" AND services LIKE '%$services%'";
}
if ($hardiker != 'All') {
$sql_result .=" AND hardiker = '$hardiker'";
}

My php is dire and help with putting these together would help me display markers on a map for all results from a search form rather than display all records within the db as is happening at present....

Also would I need to move the script from the head tag?

Hi guys,

At the moment i have this code which disable the middle button in Safari and Chrome..

Code:

$('body').mousedown(function(e){
		if(e.button==1)
		return false
	}
);

How can I disable it in Firefox and IE?.. i think IE middle button ==4 but its not working for me.

Thanks in advance!

I want to create an array of 1 - X
(X could be 10, 20, 30 or any number)

Then I want to randomly choose a number from 1 - X

I now want to remove the random choice - and then do the same again twice

Question 1: How do I create the array in the first place?

Answer: var x=[0,1,2,3,4,5,6,7,8,9,10];

I'd much prefer it if I could do something like this:
var x=[0...10]; This would create the same, except, I don't have to type out all the numbers! And if I needed to increase the number in the array, I could simply just change the last number

I've just made the syntax up
I was hoping something similar shorthand existed
Or do I have to do this by creating a loop?

Question 2: how do I pop an item from the middle or somewhere other than the beginning or end?

I've googled and all I can find is how to remove the first and last items!

The way I see it:

- Get a solution for popping from the middle of an array
I'm sure I'll find a solution to this if I looked - but is it optimal to be doing it this way?

- Instead, maybe I could fill my array in a random order in the first place - and then just pop at the beginning or end??

Which is the best solution?

Any code to start me off would be great

Thanks


OM

Hi, I've been trying to code a javascript fonction that uses Window.find and I'm having problems doing exactly what I want. I don't know much of java and I understand that it's not everyone who's willing to do all the work for me so I'm looking for a very kind person here

I want it to find a specific string that won't change (so no use to prompt for it) in another existing page that would be loaded in a frame. When the string is found, a sound is played like an alarm. The entire thing should reload every like 5 minutes. That's the easy part. I'm having trouble with the "If found in the frame, play a sound part".

I don't think it's pretty hard to do, but hey, I can't do it. As I said earlier, I understand I ask for someone to do the whole thing for me but I'm willing to pay by paypal for the service. Let's say... I don't know, ten bucks should do it.

I think I've been clear with what I need but if not, please feel free to ask for more specifications. Thanks for your time.

This is the script itself - no error messages are generated.

Code:

<script language="javascript" type="text/javascript">

function getXMLHTTPRequest() {

try {
req = new XMLHTTPRequest();
} catch(err1) {
  try {
  req = new ActiveXObject("Msxm12.XMLHTTP");
  } catch(err2) {
 	try {
	req = new ActiveXObject("Microsoft.XMLHTTP");
 	} catch(err3) {
 	  req = false;
 	}
  }
}
return req;
}

var http = getXMLHTTPRequest();

function getCattle(animal_id){

var myurl = 'find_cattle.php';
var CattleValue=animal_id;
	var modurl= myurl+"?d="+CattleValue;
**************the alert returns the correct value from my selection and after than nothing, I never get my alert from the response portion
	alert("Looking For "+modurl);
*******

	http.open("GET", modurl, true);
	http.onreadystatechange=useHttpResponse;
	http.send(null);
}

function useHttpResponse(){
************It never gets to this response
	alert("Made It To Response");
	if (http.readyState == 4) {
		if(http.status == 200) {
			var ListValue = http.responseXML.getElementsByTagName("animal_id")[0];
			document.getElementsById('cattle_data').innerHTML = animal_id.childNodes[0].nodeValue;
			}
		}	 
}

</script>

thank you

Hello,

Below is the javascript I'm debugging (or trying to) but just can't see where the error is:

The code should send a message "GOOODDD!!!" when the input box is empty (nothing typed in) and should send a message (BAAADD!!!) when a string of theee a's are typed in ("aaa").

The problem is that no matter what I type in the script ALWAYS sends me a "GOOODD!!" message.

I guess it is a simple glitch but I just can't figure it out.
I'd appreciate any help

Thank You.

Code:

<script language="javascript" type="text/javascript">
<!--
function textCheck(that)  
{  
 	var mytext=document.getElementById("BLABLA")  
 
 	if (mytext == "aaa")
 	 	
 		alert("BAAAAADDDDD!!!!" + mytext.value);
 	else
 		alert(" GOOOODDDD!!!!" + mytext.value);	
}
	-->  
</script>  
</head>

<body>  
	<form id="form1" method="get" onsubmit="textCheck(this)" />
	<input 	name="BLABLA" 
			size="3"  
			type="text"/> Input Data 
			
		<br/><br/>
			
	<input name="Submit1" type="submit" value="submit" />
	
</body>
</html>