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JavaScript - How Do Automatic Letter Generators Work?
I need to make something that will automatically insert values into a letter based on user input, just like this one right here. please tell me how it works....
Similar TutorialsHi, I'm currently trying to incorporate several random link generators on one page, each with different links to be directed to. However, at the minute all the links just direct me to the URLs of the most recent random link to be created. If someone could point me in the right direction to fixing this that would be great! The code I am currently using is: Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<script type="text/javascript">
var movie=new Array()
movie[0]="http://bringbacktheoc.weebly.com"
movie[1]="http://allaboutkarl.weebly.com"
movie[2]="http://recipeshareonline.weebly.com"
function randomLinks(elem)
{
var randomLink=Math.floor(Math.random()*2);
elem.href=movie[randomLink];
elem.target = "_blank";
}
</script>
<a href="#" onclick="randomLinks(this)"<p><font size="20" > 1 </font><p> </a>
</body>
</html>
Thanks! Hey, I'm writing a piece of code, using a given code as an example, but few things are confusing to me, if you could just explain me step by step what it does, I would really appreciated. Code: function getGeneticCodeString (type) {
if ((type.toLowerCase() == "standard") || (type.toLowerCase() == "transl_table=1"))
{
return "/gc[acgturyswkmbdhvn]/=A," +
// Here I know that the three letter combination HAS to begin with 'gc'
// can be followed by a,c,t,g or u.
// What do the other letter represent?
"/[tu]g[ctuy]/=C," +
// Begins with either 't' or 'u', middle symbol is 'g'
// third symbol can be c, t, or u ('u' can be used only if it begins with 'u'.
// what is the 'y' for in the second square brackets for??
"/ga[agr]/=E " ;
// Must start with 'ga' followed by 'a' or 'g'.
// What is 'r' for?
}
}
Hope, I didn't confuse anybody. Thank you. Hi, I have a 'Register' page on my site. When someone registers to my website, I would like to make it necessary to have a div box which generates a random number/letter, which is linked to a text field where the user has to match the generated output. I've been sitting here wondering which would be the best route to take regarding completing this. I was thinking about using charAt() method. Could anybody please possibly give me some tips for generating random letter/numbers? Possibly would I create a string containing "ABCDE....Z0123456789", then use the charAt method to find a character at a certain index position? If so, would I need create something which generates a random index position? Any help would be fantastic, thank-you. Hi, I have been working on a hangman game and I have run into a glitch. I have it coded so that when the user guesses a letter correct, the letter is filled into the corresponding text spot. Like this: Code:
if (randomword.indexOf(guess1) == 0)
{
document.form1.letter1.value = guess1
letter1 = guess1
}
if (randomword.indexOf(guess1) == 1)
{
document.form1.letter2.value = guess1
letter2 = guess1
}
if (randomword.indexOf(guess1) ==2)
{
document.form1.letter3.value = guess1
letter3 = guess1
}
if (randomword.indexOf(guess1) == 3)
{
document.form1.letter4.value = guess1
letter4 = guess1
}
if (randomword.indexOf(guess1) == 4)
{
document.form1.letter5.value = guess1
letter5 = guess1
}
if (randomword.indexOf(guess1) == 5)
{
document.form1.letter6.value = guess1
letter6 = guess1
}
if (randomword.indexOf(guess1) == 6)
{
document.form1.letter7.value = guess1
letter7 = guess1
}
if (randomword.indexOf(guess1) == 7)
{
document.form1.letter8.value = guess1
letter8 = guess1
}
if (randomword.indexOf(guess1) == 8)
{
document.form1.letter9.value == guess1
letter9 = guess1
}
if (randomword.indexOf(guess1) == 9)
{
document.form1.letter10.value = guess1
letter10 = guess1
}
if (randomword.indexOf(guess1) == 10)
{
document.form1.letter11.value = guess1
letter11 = guess1
}
The variable randomword is the randomly selected word from an array. The guess1 is the users guess. The letter variables are just to check to see if all the spots are filled to win the game. It works fine if the the word doesnt have repeating letters in it such as "Lucky". However words such as "Happy" do not work. If you guess 'p' code fills in the 3 text box with a 'P' but it leaves the 4 spot empty. Even if you guess 'p' again, it still leaves the 4 box empty. Thanks for the help! If you need to see the full code i can post it. Thanks again! Hi, I want to display my listings like they do he http://www.ticketnetwork.com/performers/concerts/a.aspx The code on my end calling the third party service looks like this: <script language="javascript" type="text/javascript"> document.write('<script language="javascript" src="http://###########.com/?bid='+####+'&sitenumber='+#+'&tid=event_names&pcatid=2&showcats=true&title=Concerts Tickets"></' + 'script>'); </script> How do I make it only display one letter at a time? I believe some variation on the sort method might work... I need to change one letter in a text string, but near as I can figure out, I can't just do this: Code: TextString[8] = "X"; Is that possible, or do I have to break the string and rebuild it into a second string? Hi, below is my code and i cant seem to figure out how i can loop the string and find the location of letter "a" in the string and display it like "1 3 17" ... i cant seem to figure out what i am doing wrong in the loop and keep getting "1 1" ... Thanks before hand! <html> <body> <script type="text/javascript"> var char = "a"; var str="JavaScript is great!" var pos= 0 for(i=0; i<=str.length; i++) { if(pos == i) { var pos = str.indexOf("a") document.write(pos++ + " ") } } </script> </body> </html> I am working on a work project that requires a 5*5 table, that will generate random letters in each cell upon button click. I have most of the coding complete with the exception of the letter generation. I am currently generating numbers, I would even be fine with having a RandBetween(and listing the 26 letters of the alphabet) at this point. Any suggestions? Code: <script type="text/javascript">
var random1, random2, random3, random4, random5, random6, random7, random8, random9, random10, random11, random12, random13, random14, random15, random16, random17, random18, random19, random20, random21, random22, random23, random24, random25;
var randomArray = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
//generate the random characters
function CreateCellData() {
for (var i=0; i<randomArray.length; i++) {
randomArray[i] = Math.floor(Math.random()*99 + 1);
}
}
Hi, i know i should have 2 fields for a first and last name in my form but i dont - and was wondering if someone would be able to help me with - or has - a java script valadation rule to only allow a one letter character (letter in between spaces such as a middle initial) in a text field if at least 2 words are also included (2 words of at least 2 or more characters) so if the user input ' John H ' an error prompt would display until one more word is added/at least 2 words are found right now im using the below coding to allow at least 2 words in the text field but would like to see if its possible to enhance it so it will only block a one letter word if there are less than 2 other words in the form - right now if any words is added with less than 2 characters it will display an error... if anyone knows of a better form of code that needs a minimum of 2 words added and still allows single characters such as middle initials to in a validation script i'd greatly appreciate your help... i get lost on validation process' 'cheers' in advance to anyone that may know of something or a site that can point me in a better direction function(value,element){return this.optional(element)||/^((\b[a-zA-Z]{2,80}\b)\s*){2,}/ The statement does what I want it to do, except if there is multiple instances of the word, it only outputs one, how can I work it so all instances are output in red? (while still using .slice) var phrase = prompt("Enter a messate: ", 'Message'); var searchFor = prompt("Enter search text: ", 's'); var matchPhrase = ""; var searchIndex = -1; /* if there's a match, create a text string by * add the phrase text from before the match, * add <font> tags around the match text, * add the rest of the phrase from after the match */ searchIndex = phrase.indexOf(searchFor); if (searchIndex >=0 ) { // Copy text from phrase up till the match. matchPhrase += phrase.slice(0, searchIndex); matchPhrase += '<font color="red">' + searchFor + '</font>'; matchPhrase += phrase.slice(searchIndex + searchFor.length); phrase++ } else { matchPhrase = "No matches" } document.writeln(matchPhrase); Reply With Quote 01-31-2015, 09:08 AM #2 Philip M View Profile View Forum Posts Supreme Master coder! Join Date Jun 2002 Location London, England Posts 18,371 Thanks 204 Thanked 2,573 Times in 2,551 Posts Use a regular expression. Hi back again, another add on to my add more inputs thread Im trying to add automatic number when i add more inputs. but starting from what has already been inputted. For example I have volumes of a series. with volume 1 2 3 and 4 already made and I have a form to input another volume title. or in this case multiple forms. I want to add more inputs with the default values to keep adding +1 so... continueing with 5 6 7 8 and etc. What i have. I think im really bad at math or something or im just stupid. Problem is it resets the var number when i keep pushing to add more inputs. I've tried some if() but im just stupid... var limit = 20; // max number of rows in total var LIMIT=1; var theNumber = 0; var currentNumber = 0; Code: function addRow(number){
var currentNumber = number + 1;
var content1='<input size="3" type="text" name="number[]" value="' + currentNumber + '"/>';
var content2='<input type="text" name="title[]">';
var content3='<input size="10" type="text" name="aka[]">';
currentNumber++;
// NON IMPORTANT STUFF AFTER THIS
if (LIMIT == limit) {
alert("You have reached the limit of adding " + (limit) + " inputs");
return false; // just leave
}
LIMIT++;
tabBody=document.getElementsByTagName("TBODY").item(0);
row=document.createElement("TR");
cell1 = document.createElement("TD");
cell2 = document.createElement("TD");
cell3 = document.createElement("TD");
cell1.innerHTML=content1;
cell2.innerHTML=content2;
cell3.innerHTML=content3;
row.appendChild(cell1);
row.appendChild(cell2);
row.appendChild(cell3);
tabBody.appendChild(row);
}
Hi all, I need help with my problem. I have a plasma TV on which I invoking a lot of different short videos and I need at this TV also displayed a particular Web page. Video length is variable and depends on the actual length of the video currently playing and display the Web page is always 3 minutes. I'd like to do in this format: video1.html (3 minutes) -> pocasi.cz (5 minutes) -> video2.html (10 minutes) -> pocasi.cz (5 minutes)->...-> video30.html (1,5 minutes) -> pocasi.cz (5 minutes) -> video1.html (2,5 minutes )->... . Video's and web page in full screen without buttons. Can someone please advise how the script should look like? Thank you for your advice. Hi friends, I am collecting and selling football stickers. Yes, World Cup 2010 stickers. The album have 640 distinct numbers. Everytime I receive a list of that stickers to buy by the user I would need ckeck out the price list because some stickers have different price from another. For example Stickers numbers: 00, 000, 1, 2, 3, 4, 5 and 29 costs 3,00. The stickers number 31, 50, 69, 88, 107, 126, 202, 411, 392, 544 and 637 costs = 1,00. The stickers 30, 49, 68, 87, 106, 125 costs 0,25 The sticker from 32 to 48 51 to 67 70 to 86 89 to 105 (and so on) costs 0,25 I would be glad if someone could help me for building a script which read from a textarea numbers contents and create a "short report" with the stickers numbers followed by its price and total sum. Bob Kuspe Hi, I admit from the start, I'm not very good with JS, I've used it a few times over the years, but mostly readymade scripts that I can just link to a website and use. Anyway, I need something somewhat specific and I don't know where to find such a code or even if I can modify the one I have found to do what I need. What I need is to be able to update totals on the page as things are changed, but I'm not talking about one total. What I have is a list of spare parts with a quantity box next to them, when someone changes the quatity the price for that part needs to update as well as the total price AND a sum that is an allocated amount minus the total (so they can see how much of their allocation they have left). So far, all I've managed to find is a script that will update just the final total (http://www.mcfedries.com/JavaScript/OrderTotals.asp), but as you can see, that's not that helpful. I've sat and stared at the code and while I can say what things do what, I wouldn't know where to start in changing it. Hope someone can help! Thanks Form cap: http://img38.imageshack.us/img38/8118/partlist.png Hello I have a html page which just enter the coordinates of a city and appear that processes the data file javascript. this is the part where I put the coordinates manually: Code: <script type="text/javascript"> var date = new Date(); // today var times = prayTimes.getTimes(date, [44, 11], +2); So far we have and everything worked .. just that I want to create a table with all names of cities, click on a city data appear to me .. there is some code that could only enter the coordinates by clicking on the name of the city, instead of entering all the time coordinates? thanks again p.s. sorry for my bad english Quote: The parameter A should display the sum of the remaining six fields. I did try adding that using the JAVA script that is mentioned in second code. The total should be display immediately after value is set for any of the text boxes. The text box gets the value using drop down menu. This procedure only works if I use the keyboard tab. If I use the mouse to select YES and No, then it will not display the total Code:
<html>
<head>
<script type="text/javascript" src="javascript/addfunctions.js"></script>
<script type="text/javascript">
function enable1()
{
document.audit_billing_IE.Para_A_A1_comment.disabled = false;
document.audit_billing_IE.Para_A_A1_score.value = 00;
}
function enable2()
{
document.audit_billing_IE.Para_A_A2_comment.disabled = false;
document.audit_billing_IE.Para_A_A2_score.value = 00;
}
function enable3()
{
document.audit_billing_IE.Para_A_A3_comment.disabled = false;
document.audit_billing_IE.Para_A_A3_score.value = 00;
}
function enable4()
{
document.audit_billing_IE.Para_A_A4_comment.disabled = false;
document.audit_billing_IE.Para_A_A4_score.value = 00;
}
function enable5()
{
document.audit_billing_IE.Para_A_A5_comment.disabled = false;
document.audit_billing_IE.Para_A_A5_score.value = 00;
}
function enable6()
{
document.audit_billing_IE.Para_A_A6_comment.disabled = false;
document.audit_billing_IE.Para_A_A6_score.value = 00;
}
function disable1()
{
document.audit_billing_IE.Para_A_A1_comment.disabled = true;
document.audit_billing_IE.Para_A_A1_score.value = 10;
}
function disable2()
{
document.audit_billing_IE.Para_A_A2_comment.disabled = true;
document.audit_billing_IE.Para_A_A2_score.value = 10;
}
function disable3()
{
document.audit_billing_IE.Para_A_A3_comment.disabled = true;
document.audit_billing_IE.Para_A_A3_score.value = 10;
}
function disable4()
{
document.audit_billing_IE.Para_A_A4_comment.disabled = true;
document.audit_billing_IE.Para_A_A4_score.value = 10;
}
function disable5()
{
document.audit_billing_IE.Para_A_A5_comment.disabled = true;
document.audit_billing_IE.Para_A_A5_score.value = 10;
}
function disable6()
{
document.audit_billing_IE.Para_A_A6_comment.disabled = true;
document.audit_billing_IE.Para_A_A6_score.value = 10;
}
function na1()
{
document.audit_billing_IE.Para_A_A1_comment.disabled = true;
document.audit_billing_IE.Para_A_A1_score.value = 00;
}
function na2()
{
document.audit_billing_IE.Para_A_A2_comment.disabled = true;
document.audit_billing_IE.Para_A_A2_score.value = 00;
}
function na3()
{
document.audit_billing_IE.Para_A_A3_comment.disabled = true;
document.audit_billing_IE.Para_A_A3_score.value = 00;
}
function na4()
{
document.audit_billing_IE.Para_A_A4_comment.disabled = true;
document.audit_billing_IE.Para_A_A4_score.value = 00;
}
function na5()
{
document.audit_billing_IE.Para_A_A5_comment.disabled = true;
document.audit_billing_IE.Para_A_A5_score.value = 00;
}
function na6()
{
document.audit_billing_IE.Para_A_A6_comment.disabled = true;
document.audit_billing_IE.Para_A_A6_score.value = 00;
}
function changed1(el)
{
var sel = el.options[el.selectedIndex];
if (sel.value == "Yes")disable1();
if (sel.value == "No")enable1();
if (sel.value == "Na")na1();
}
function changed2(el)
{
var sel = el.options[el.selectedIndex];
if (sel.value == "Yes")disable2();
if (sel.value == "No")enable2();
if (sel.value == "Na")na2();
}
function changed3(el)
{
var sel = el.options[el.selectedIndex];
if (sel.value == "Yes")disable3();
if (sel.value == "No")enable3();
if (sel.value == "Na")na3();
}
function changed4(el)
{
var sel = el.options[el.selectedIndex];
if (sel.value == "Yes")disable4();
if (sel.value == "No")enable4();
if (sel.value == "Na")na4();
}
function changed5(el)
{
var sel = el.options[el.selectedIndex];
if (sel.value == "Yes")disable5();
if (sel.value == "No")enable5();
if (sel.value == "Na")na5();
}
function changed6(el)
{
var sel = el.options[el.selectedIndex];
if (sel.value == "Yes")disable6();
if (sel.value == "No")enable6();
if (sel.value == "Na")na6();
}
</script>
</head>
<body>
<form name="audit_billing_IE" method="POST" action="billing.php">
<table>
<tr>
<td> Parameter A </td>
<td colspan='3'> <input type="text" name="product_name4" id="product_name4" /> </td>
</tr>
<tr>
<td> Procedure </td>
<td>
<select name="Para_A_A1" id = "Para_A_A1" align="center" onchange="changed1(this)">
<option value="s1"> Select</option>
<option value="Yes"> Yes </option>
<option value="No"> No </option>
<option value="Na"> Na </option>
</select>
</td>
<td>
<input type="text" name="Para_A_A1_comment" value="" disabled/>
</td>
<td align="center"> <input type="text" name="Para_A_A1_score" value="" onFocus="startCalc();" onBlur="stopCalc();"/>
</td>
</tr>
<tr>
<td> Days Calculation </td>
<td>
<select name="Para_A_A2" id = "Para_A_A2" align="center" onchange="changed2(this)">
<option value="s2"> Select</option>
<option value="Yes"> Yes </option>
<option value="No"> No </option>
<option value="Na"> Na </option>
</select>
</td>
<td >
<input type="text" name="Para_A_A2_comment" value="" disabled/>
</td>
<td> <input type="text" name="Para_A_A2_score" id="Para_A_A2_score" value="" onFocus="startCalc();" onBlur="stopCalc();"/>
</td>
</tr>
<tr>
<td> request form </td>
<td>
<select name="Para_A_A3" align="center" onchange="changed3(this)">
<option value="s3"> Select</option>
<option value="Yes"> Yes </option>
<option value="No"> No </option>
<option value="Na"> Na </option>
</select>
</td>
<td >
<input type="text" name="Para_A_A3_comment" value="" disabled/>
</td>
<td> <input type="text" name="Para_A_A3_score" id="Para_A_A3_score" value="" onFocus="startCalc();" onBlur="stopCalc();" />
</td>
</tr>
<tr>
<td> Case </td>
<td>
<select name="Para_A_A4" align="center" onchange="changed4(this)">
<option value="s4"> Select</option>
<option value="Yes"> Yes </option>
<option value="No"> No </option>
<option value="Na"> Na </option>
</select>
</td>
<td >
<input type="text" name="Para_A_A4_comment" value="" disabled/>
</td>
<td> <input type="text" name="Para_A_A4_score" id="Para_A_A4_score" value="" onFocus="startCalc();" onBlur="stopCalc();"/>
</td>
</tr>
<tr>
<td> interaction </td>
<td>
<select name="Para_A_A5" align="center" onchange="changed5(this)">
<option value="s5"> Select</option>
<option value="Yes"> Yes </option>
<option value="No"> No </option>
<option value="Na"> Na </option>
</select>
</td>
<td >
<input type="text" name="Para_A_A5_comment" value="" disabled/>
</td>
<td> <input type="text" name="Para_A_A5_score" id="Para_A_A5_score" value="" onFocus="startCalc();" onBlur="stopCalc();"/>
</td>
</tr>
<tr>
<td> MIS</td>
<td>
<select name="Para_A_A6" align="center" onchange="changed6(this)">
<option value="s6"> Select</option>
<option value="Yes"> Yes </option>
<option value="No"> No </option>
<option value="Na"> Na </option>
</select>
</td>
<td >
<input type="text" name="Para_A_A6_comment" value="" disabled/>
</td>
<td> <input type="text" name="Para_A_A6_score" id="Para_A_A6_score" value="" onFocus="startCalc();" onBlur="stopCalc();"/>
</td>
</tr>
</table>
</form>
</body>
</html>
Code:
function startCalc(){
interval = setInterval("calc()",1);
}
function calc(){
one = document.audit_billing_IE.Para_A_A1_score.value;
two = document.audit_billing_IE.Para_A_A2_score.value;
three = document.audit_billing_IE.Para_A_A3_score.value;
four = document.audit_billing_IE.Para_A_A4_score.value;
five = document.audit_billing_IE.Para_A_A5_score.value;
six = document.audit_billing_IE.Para_A_A6_score.value;
document.audit_billing_IE.product_name4.value = [(one * 1) + (two * 1) + (three * 1) + (four * 1) + (five * 1) + (six * 1)];
}
function stopCalc(){
clearInterval(interval);
}
I have two vertical frames. The left frame has an image that scales to 100% of the window's height. I am trying to make the page automatically resize the width of that left frame so that it exactly fits the scaled image's width in order to always give the right frame as much space as possible, but I can't seem to get it to work. Can anyone help me out? Here's the code for my frameset: Code: <html> <frameset id="MyFrameset" cols="25%,*" frameborder="no" border="0"> <frame noresize="noresize" src="Leftframe.html" name="LeftFrame"> <frame noresize="noresize" src="Rightframe.html" name="RightFrame"> </frameset> </html> And here's the code for my left frame: Code: <html>
<body style="overflow:hidden; margin:0; padding:0"
onload="parent.document.getElementById('MyFrameset').setAttribute('cols', 'document.body.clientWidth,*', 0);">
<img src="image.JPG" style="border:none;" height="100%" alt="image"/>
</body>
</html>
Oh yeah, the reason why I need to do this is so if someone is viewing the page on a widescreen monitor, the left frame won't eat up more space than necessary. Hi, hope someone can help. doing some work with google maps api. I have a function called codeaddress, this is triggered by a search button. is there a way to add js to make an automatic click on results after search ? here is code of function.. Code:
function codeAddress() {
var address = document.getElementById("address").value;
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
map.setZoom(10);
} else {
alert("City was not found: " + status);
}
});
}
how to automatic append picture to a list? check text in span,if it match today,a picture append after meeting（4-22) code like this. Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<style type="text/css">
.li_title { list-style-type:none;
font-size:12px;
line-height:24px;
}
.date {float:right;margin-right:3px;}
</style>
</HEAD>
<BODY>
<DIV id=Conttab_p_switch1 style="POSITION: relative">
<UL>
<LI class="li_title"><span class="date">2011-04-22</span><A title=meeting（4-22） href="#" rel="nofollow" target=_blank>meeting（4-22）</A></LI>
<LI class="li_title"><span class="date">2011-04-11</span><A title=meeting（4-11） href="#" rel="nofollow" target=_blank>meeting（4-11）</A></LI>
<LI class="li_title"><span class="date">2011-04-04</span><A title=meeting（4-04） href="#" rel="nofollow" target=_blank>meeting（4-04）</A></LI>
</UL>
</DIV>
</BODY>
</HTML>
Hi, I am new to javascript,this is my first time using it, I am wishing to have 2 buttons on my website, one that scrolls to the bottom of my page when clicked and then stops at the bottom and one that scrolls back up the page when clicked, but I want my viewers to be able to see this movement. I have some code (below) which works fine in firefox but it doesn't work in explorer, and I can't get this code to work moving upwards (after taking away the minus from -50). Can anybody please help me I have been battling for days trying to make it work although I am finding it hard to understand javascript being a first time user. I currently have this javascript : [CODE] <head> <script language="JavaScript"> function pageScrollup() { window.scrollBy(0,-50); // horizontal and vertical scroll increments if (window.pageYOffset) { scrolldelay = setTimeout('pageScrollup()',5); } } </script> </head> <body> <a href="JavaScriptageScrollup()">Back to Top</a> </body>[ICODE] Any help is greatly appreciated. OrangeAnt |
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