Im having truble with this codein alert(q+w) if q is 3, and w is 4 it will display 34 not 7and if e==false it still does if r==true
[code]
var q=prompt("Type your first number");
var w=prompt("Type your second number");
[code]....
There will be a number of list boxes and other controls, with pop-up windows
to edit certain properties. It's the kind of thing I would normally have
done in VB but I want it to be browser-based. I've only used javascript for
trivial things before so this would be my first serious javascript
development. I would like it to run on all reasonably recent browsers.
The form starts with all the initial values being received from the server
(presumably just by pre-initialised data structures). The user tinkers with
it and when he is happy he presses 'submit' and the whole lot is submitted
to the server (presumably as a form post). This would be a few kb of data,
possibly 100 individual values but obviously in various data structures. I
guess there would be a few hundred lines of javascript code to manipulate
it.
My question is, is there likely to be a problem with manipulating and
sending this amount of data in Javascript. Sorry if this is a dumb question,
but like I said, I only used javascript for tiny programs before, so I'm a
bit unsure about its capabilities.
I have got this piece of code:
Code:
I would like to display the number 1 at first and then 2. but this code produces number 2 for both alerts. I was able to achieve what i wanted with "new" constructor when creating functions but this is not a good practice and after all i am passing these functions as an event handlers and it can't be done with "new" keyword because it is throwing error. I think there are some solutions with arrays e.g the x would be an array of numbers, but i don't like it. Am i missing something important?
If ++ as in num++ added a number how do you add 2,3,4 etc numbers ?
View 2 Replies View RelatedI have been asked to make some changes to a form that uses Javascript for the form validation. There is a 'function' that contains the variables of the various form fields and then further code to raise 'alerts' if one of the fields on the form hasn't been filled in. My problem is that for some reason I am unable to add an extra variable to this code after the field of 'County' (this will hopefully make sense when you see the code / link...) and I am stumped as to why. I am able to add variables for all of the other required fields except for 'Postcode' after 'County'. This is the case for both forms. The link is here: [URL] and the code I am trying edit is below. The issues seems to be when I add && isPostcode() to this chunk of code:-
Code JavaScript:
function checkAvailibility()
{
// re-calculate...
calculate ();
[Code]....
I'm making some jQuery UI elements, and once an element is created, I want to add some custom functions and variables - I don't want to clutter up other jQuery objects by putting the functions in all jQuery objects, and obviously, the variables need to be different between different objects. However, the issue is, when I re-acquire the item, I won't have access to the variable any more.
That was probably confusing. Another way of putting it:
(function($){
var _MyUI_id=0;
jQuery.fn.MyUICreate = function(opts){
this.each(function(){
var obj=$(this)
//... code to turn the object into a MyUI object omitted to be concise
obj.MyUI_id = _MyUI_id;
_MyUI_id++;
}}
})(jQuery)
//now, create one
$('#some_div').MyUICreate({});
//The desired effect would be to give me the id in #14, instead I get 'undefined'.
alert($('#some_div').MyUI_id);
My 'solution', is to create an object variable in jQuery.fn called 'Collections'. It's indexes are the names of the new types, and each contains an object, the keys of which are the IDs of the UI elements that are converted to the type, and the values the jQueries objects. This is not only hackish, but it has a LOT of potential bugs. The code for this would look like:
This is in the 'create' function, at the end.
jQuery.fn.Collections.MyUI[obj.attr('id')]=obj;
This is outside of the create function, but within the (function($){...}) scope.
//jQuery.fn.Collections is set to {} in another file.
jQuery.fn.Collections.MyUI={};
jQuery.fn.GetMyUI(id){
return jQuery.fn.Collections.MyUI(id);
}
This will allow the first block of code to work as desired, but it inserts a whole new set of bugs. What are the common ways to achieve what I am trying to do?
I'm trying to learn more about creating and using JavaScript objects and ran into this situation the other day:
Code:
function someObject() {
var size = "large";
[code]....
I have javascript which counts seperately every time 2 seperate buttons are clicked, this then outputs the amount on the same page. This works, however I am now trying to add a third value to output on the page which is the total of the clicks which i would calculate by adding the 2 attributes together. This just doesn't seem to be working though.
java
<script type="text/javascript">
var NextClick = 0;
var PrevClick = 0;
var TotalClicks = 0;
[Code]....
I am working on an HTML project that displays a field with a number in the field by each day. What it does is start at 0 on day one. Each day it adds a 1 to the field. Day 2, the field would say 1, then day 3 would say 2, and so on. I am not sure how to approach this. This is also displayed in an HTML format. I want to to be automatic and change as the date changesI will also need a way to reset it back to zero if possible.
View 27 Replies View RelatedI'm new to Javascript, and just trying to make a simple program that adds two numbers and displays the result automatically in the third field without clicking a button "onclick".I have the following so far, but still not working properly: ttp://pastie.org/private/sy8lkdhvfunudvrizbjjca
View 4 Replies View Relatedi've got a program that gets input from a user, and then stores it in a cookie. That bit is fine, what is a problem is that its just overwriting the data each time a new entry is made, i believed this to be something do do with it not being numbered entry's, so i added a number into the entry, but for some reason it wont add 1 to the number variable each time the function is called
<html>
<head>
<title>Grader 101</title>
[code]....
I want to create a script where when you hit a button it adds a number to a variable and when you click another button it shows you the amount you have so far. Also I am having trouble with the clear() function where it was suppose to clear the variable. When my var is equal to a certain number (not there yet) I want it to goto another page (I can do this on my own).
Here is my code
<html><head>
<title> Buttons</title>
<body style="background-color:#000000">
<center>
<p style="Font-Family:Curlz MT;color: #CC3333;Font-size:40px;">Click the buttons to test my script
</p></center>
<script type="text/javascript">
var x = 0;
blue
function mouseOver() {
document.getElementById("b1").src ="Hi_h.png";
} function mouseOut() { .....
(The button are images so you want be able to see them if you don't download them).
I have a pretty basic HTML form, it doesn't go to a database or anything, it just gets emailed directly to the owner of the website with their customer query.However, the owner has now asked that each query be assigned a random reference number of no more than 16 digits which must also be visible to the customer.I presume this will be relatively easy but I'm a complete beginner with Javascript which I assumed would be necessary for generating the number. I've sort of figured out how to generate the number but I can't figure out how to get that number into a read-only field on the form so that it will be both visible to the client and sent with the rest of the data on the form to the owner.I've had a number of attempts but this is what I'm trying at the moment:
Code:
<html>
<head>
[code]....
I am making a form using HTML and java where you enter a number and it uses an equation then spits out another number. My problem is I want to split the number you put into the form and add it up. Example You enter"457829"Press "convert"And the first step I want it to do is"4+5+7+8+2+9=sumA"Then"sumA/8"So far I can only do the sumA/8 if I manually add up the numbers then place the sum in the form, here's the code:
Code:
{
var a = parsefloat(form.NumA.value, 10);
[code]....
This is a hard one for me: I got some elements with the class "tiles". What I am looking for is a function, which adds a class "flip" to each element but with a delay between each call of addClass(".flip"), so that the elements change the way they look sequentially, not one after another, but with a delay. Has anyone an idea?
View 1 Replies View RelatedI'm trying to get my script below working. I've managed to get it to add fields dynamically but the remove function isn't right... and I can't think of a way round it. how can i incorporate a way for a limit on the number of fields that can be added?
<script type="text/javascript">
function addInput()
{
var x = document.getElementById("inputs");
x.innerHTML += "<input type="text" />";
}
function removeInput()
{
[Code].....
ah, i've just looked into the operators in more details and -= is just for numbers... so this won't work. i presume this is going to be the wrong method then.
ave this form which gets created by pulling stock/products from a database using PHP and beside every product in the row is a little box for input and in there the user can input the quantity of the product they want. Sometimes only 2 products will be outputted and other times 10 or more.What I want to happen is when the user enters in lets say 3 for the quantity of a certain product I want to get a total for how much 3 of that product will cost so I just do 3 multiply by the cost (which I have from the database) and then display the total cost down under where the list of the available products are and I want all this to happen dynamically obviously not using PHP because I don't want the page to have to reload every time they enter in a new quantity.
I know how to display text and stuff in certain divs with certain ID's using Javascript but I just don't know how to keep track of a form and do what I want to do when the number of inputs in the form can range from 1 to 10 or more. Im thinking of some sort of counter which gives every input a different ID like add 1 at the end of the ID name of the input as the PHP script loops through the database query displaying the products but I still don't know how to go about the Javascript side of things
I want to build a dynamic list of items with jquery but am unsure how to add an index number to each of the items i create so that i can reference them to edit or delete them for example. So far, I have the following which just creates the items and appends or prepends them to the element depending on whether one item exists already. I just need a way of adding an attribute so I can then reference the current item when clicked and remove it. What would be the simplest method to use?
//create list items
if ($('.mylistitem').length) {
$('.myList-box').prepend('<div class="mylistitem"><div class="mylistitem-image"><img width="30" height="40" src="[URL]"/></div><div class="mylistitem-title">' + title + '</div><div class="mylistitem-options"><a href="javascript:removetitle();">Delete From List</a></div>');
} else {
$('.myList-box').append('<div class="mylistitem"><div class="mylistitem-image"><img width="30" height="40" src="[URL]' + titleid + '"/></div><div class="mylistitem-title">' + title + '</div><div class="mylistitem-options"><a href="javascript:removetitle();">Delete From List</a></div>');
}
What I want to do which I can't achieve is that I want the functionality of the Option Type, Number of Answers and Answer buttons within each row to match the functionality on top. The problem is that under the "Answer" column within the new row it does not allow the user to select a button and the textbox under the "Number of Answers" button doesn't do anything but just display a number within the textbox.
Step 1: Open the fiddle and you see an options and answers section on top. Open the grid and select option 8. Buttons A to H would appear.
Step 2: Type in 2 in the Number of Answers Textbox.
Step 3: Select buttons A and D, you will find out that those buttons would turn green to show they are selected. Now as you entered in 2 in the Number of answers textbox (step 2), it won't let you select more than 2 buttons, if you do an alert would apear stating you are beyond limit please deselect a button to choose another button.
Step 4. Click "Add Question", a new row is added in the table.
Step 5: In the new row you just created, lets say that oh no I made a mistake, there should be 4 answers not 2 answers and within the table row you just added you changed the number of answers textbox from 2 to 4. My question is how can I get it so that it allows the user to select the buttons (turn buttons green) and deselect (turn buttons white) under the "Answer" column within in the row and that if the user has selected 4 buttons but tries to select a 5th button, it will come up with same error as in Step 3?
I have this script that is supposed to check if a number the user guesses is the same as the randomly generated number.Problem is that the random number generated at the start of the program keeps on changing everytime I click on the "Check if I'm right" button, the random number gets generated again and I never ever get to reach the correct answer
HTML CODE
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
[code].....
Hello everyone... I've got a question about an onKeyUp event. I'm using a text box that HAS to be a negative number therefore it has to have a - sign in front of the number. Can someone point me in the right direction as to how to write a function to do this? Thanks so much...
View 5 Replies View RelatedI am working on trying to create a Picture Bingo JavaScript. I am using the standard Bingo Card Generator and it works great however, I need help coding the script so that the number are associated with a picture for example everytime number 12 would show up on the card an image would replace the number. Here is the code that I am using:
[Code]...
When updating our agency's webpage daily, [URL] I am looking for a shortcut to save time.. When I update air quality numbers. I have to put the conditions. Ex.. 50 = good 100= moderate etc etc. As you see here(bold and underlined)
[Code]...
Well instead of having to type good or moderate every-time to correlate with the numbers, I want to find a way the category can automatically default correctly when I put in just the number. Ex, if I put in the number 100, it automatically knows to issue/ put Moderate with out me having to type it. I semi wrote a code .. Yet can't seem to know how to execute. Seeing if Maybe I can get some assistance.
[Code]...
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:
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:
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?
View 6 Replies View RelatedI 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?
View 5 Replies View Related