Array :: How Would I Make The Buttons For The Numbers?
Jul 30, 2011
I am starting to learn javascript and have been trying to make a image gallery. I was hoping to take an array of src and create a link for each one which when clicked on changes the src of an already existing img.My question though is how would I make the buttons for the numbers.I feel like a loop would work for this but I just can't seem to figure it out. I don't know how far off I am in thinking that through a loop I could create functions with a name plus the i variable.And in each function there could be something like:
Code:
document.images["destination"].src = images[i]
That would then produce an <a> with the href equal to the function name + "i" with the title being "i" as well.
Am I way off? How would I execute that? A little explanation about my code. I am going to be using a loop to add the images that will vary in amount for each page that is why I have the push function just for this test. And the document.ready is because I've been using some jQuery.
thta should of out put me "hello world" as it is what it is in array but it does not as there is 422 there That's my ID from database, and I gotta use itNow, if I change that ID to something in letters say to "i" then everything is fine. ex
PHP Code:
json_data_object.i.name
That one would work, but then I have to chnge JSON string thta pulls data from DB and i cant really do that...So the question is how can I make 422 (numbers) works the same way as just string values in the array/object tree?
I know this is probable a easy one for most of you...But this is my first Javascript. I am trying to write a code that will add two numbers entered by a user and calculate the sum. When I wrote the code inside the HTML it worked fine. But I have to use a .js file and call the function from there. And now my code does not work.code...
I have an assignment that just asks you to input some numbers and then if the number isn't between 100-999 just to enter the final number and whatever the final number is to print out everything that is less then that number. For example: I enter 120, 128, and 1. It will then prompt me to enter the final number which I put 124. Now I have it set as 124 so everything less than 124 it will print. So I want the array to print 124, 120 and 1.
Code so far: <html> <title>Homework 5</title> <body> <script> var num = new Array(); var x = 0; var lastnum; for (x = 0; x < 3; x++){ num[x] = window.prompt("Please enter a number between 100-999:"); if((num[x] < 100) || (num[x] > 999)){ lastnum = window.prompt("Enter your last number:"); for (x = 0; x < 1; x++){ num.sort(); window.alert(num); } break; }} window.alert("DONE"); </script> </body>
I want to get the sum of all numbers in an text area irrespective of the spaces before between or after them. e.g. " 1 2 12 15 " =30
In the code below I can have multiple spaces or CR between numbers and it works giving me their sum But if i have a space before the first number or after the last number I get a NAN (
I have a quick question with multiple array and random numbers. If i generate my random numbers in one array, how would i take a selection of those numbers and put them in another array?
Ex: array 1: 25, 34, 38, 40, 22, 49
Want to move numbers between 30 and 50 to another array.
array 2: 34, 38, 40, 49
Is it as simple as for loops and if statements setting the conditions? do i use a sorting method? (selection? bubble?)
I am working on a problem that wants me to use a for loop to give an array a random number for each of it's elements (total of 10) and then using a second loop to add them up and display the result.
I'm trying to create a 4 x 4 array filled with numbers input by the user. I then need to rotate the grid clockwise like I've shown below.
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
13 09 05 01 14 10 06 02 15 11 07 03 16 12 08 04
I made all numbers double digit just for show in the example so the table is easier to read. So far the code I have is just trying to create the array and fill with numbers from the user. This asks for a number once then doesn't display anything at all.
I'm trying to figure out how to do this via Javascript.
Lets say I have an array like so:
var myArray = [11, 33, 44, 23, 32, 43]; var finalArray = new Array();
And I have the following variables
var lastNumber = 33; var getNext = 2;
I want to use the lastNumber for a starting point in the array and then based on getNext, grab the next x numbers that getNext specifies and shove into finalArray.
That case moves forward in the array.
Second case would be the opposite, get the previous x numbers based on getPrevious in the array. So I'd start at lastNumber and then grab x numbers before it based on getPrevious.
var lastNumber = 33; var getPrevious = 2;
I'm not sure if you can traverse backwards in JavaScript. But more importantly I'm not sure how to point to lets say 33. How can I do myArray[1] essentially based on I'm pointing to 33 and then how can I grab the next x in myArray ?
I'm trying to generate random numbers 0-8 to use to access array indices.[code]Every once in a while, I'm getting a -1 in my console log. I read on a site that this line:[code]will generate a number between 0 and 10 (so 1-9).How is -1 being generated?
How do i use a function to find the average of the values in an array of numbers passed as argument to a function.(using java script) thank you for your help...
I want to make a link that will have a pop up with radio buttons. The user will press the buttons that make sense to them. This will then be put back into a form they are already filling out. Where can I learn to do something like this?
robofight.com/test/ when i click a button to go to a page, i want that button to stay highlighted. (so whichever page i am on, i want that button highlighted). how can I do that?
I need to make a form with 2 submit buttons the first one sends the data of the form to a blank page and the other send the data to another self page. Description: 1st button is to preview the form data in a blank page (preview.php,"Blank") 2nd button is to send data to make do a query in the database (add.php,"self")
I've got a table in which I want to have certain elements changeable if the user presses a button. The elements are stored in an array and I want to cycle through them when the button is pressed.
Here's a section of what I'm working with so far:
I've tried using the ++ and -- to change the value of s, but it's not changing the text.
then a text area and a button: <input size=7 name=total> <input type="button" onclick=c()>
the function checks for the radio buttons then outputs its value in text area.
<script type="text/javascript"> function c() {if (p1[a].checked&&p2[b].checked) total.value=parseFloat(p1[a].value)+parseFloat(p2[b].value) }</script>
my question is what is the possibility of giving values to a and b such as all radio buttons can be covered, is there a way to do this without having to output all cases with else if structure.
I have been making a javascript dice throwing app(? or whatever it's supposed to be called), but can't figure out how to make 2 functions for one button. I'm trying to have both of my dice (6- and 20-sided) to be controlled by the same throwing-button, but have radiobuttons to decide which one to throw.
