This does what I want; without the operator 'Number' I get a concatination of the various variables (as expected). Is there some way of globally defining all variables as numbers instead of strings?
How do I find the row & column number of the table for a checkbox on its Onclick event
The following HTML sample works perfect in IE. On click of the checkboxes, I am displaying the row number and its column number. How do I manage the same in Firefox? Code:
I have create a spinnrer (numeric up and down field) in my form. Below is the code for it:
Code: <form action="create_session.php" method="post" name="createsession"> <!-- This will post the form to its own page"--> <table cellpadding="0" cellspacing="0" border="0"> <tr>[code]............
Now what my question is how can I get the spinner to only allow numbers to be inputted in the spinner and not letters. Also how can I get it to only allow 2 digits to be entered in the spinner?. I know it will require an if statement but I don't know how to do it.
iwant to ask on how to display the sum of the 20 numbers i allready get the everage but i want to display the sum together of the everage this my code..
I am tring to sort some six numbers..the problem is that it doesnt work when I use "document.getElementById" instead of "document.write() my program is supposed to write six numbers every second..line by line Could you get it work ?
How can you join two numbers together in javascript, like you would join two strings?For example, if you have two variables, with 1 stored in each, how can I join them together, so I get 11, instead of 2?
Another quick question. I have the script to add each field up I need, but if the ending 0 after a decimal is present it doesnt show. How do I keep the leading zero and how do I keep just 2 digits after the decimal?
For example:
1 + 1.50 = 2.50
But javascript displays it as 2.5
Now sometimes when I do math I get:
2.3454545
In this case I just want 2.34. So if there is a ending zero I want to keep it, and if there is more than 2 numbers after the decimal I want to cut the rest off and leave the 2 there.
iw ant to have a function so that user can only enter numbers in the text box and + ( only once in the beggininging). if user wants to add + he can only enter + once as the first character like +123 or 123 bt cannot enter 1+2 or 123+ or +123+
I trying to get numbers from <div>'s and use them in if() commands.I've got the number but the if() commands don't seem to be working.Here is the code I'm using:
Code: window.onload = showPhoto var pNum = 1; // global num
My assignment for my programming class is to create a script using JavaScript that asks a user to enter a number in a pop up dialog box on their browser, and then tell them if they entered an odd or an even number. This is what I have come up with so far, whenever I test it on a browser it says that every number is even.
I am constructing an HTML questionnaire and one of the questions requires people to rate some choices from 1 to 5, where 1 is their favourite and 5 is their least favourite:
Car Bus Taxi cab Train Airplane
Each choice has an INPUT TYPE=TEXT tag to contain the response. I also have a function that is called ONCHANGE in order to check that a number is entered between 1 and 5:
function CheckNos(obj) { if(obj.value.match(/[^d]/) || obj.value<1 || obj.value>5) {alert("Please enter a number between 1 and 5");obj.value="";return false} }
This works fine, but ideally I would like a function that could check ONCHANGE that someone has not filled in the same number twice, for example answered "1" for all of them. They are only allowed to use each rating number once, so rating their choice 1 to 5.
Can anyone suggest a short function that could accomplish this easily? Could I use some kind of array with 5 elements and allocate a flag value once that number had been chosen, then check that the value had been set?
I would like to add a plausability check for numbers with JS, but regex is not really a strong knowledge of mine. Can anybody give me a hint, or lead me to the right script for doing this?
Inside the form a user can place a price which I would like to be only a number, smaller than 100000 and there should no , or . be inside the value. otherwise they should see an alert message. Code:
I would like to calculate factorial numbers that produce results of say 100 digits. What is the best way of doing it in Javascript? Can I define a variable and somehow have control on each of its digits individually?
Can I multiply two relatively small numbers and determine that there was a carry?
I thought this would be fairly easy, but I've searched and searched and came up with nothing that works. I just need to add row numbers to my table. I already have the first column blank, I just need the row numbers stuck in there. I've found examples using .index() and .rowindex, but I can't find anything that works right.
that a simple question, I hope. I have an input (<input type="text" />) on my page, and I want it to only accept numbers, so if the user types anything that's not a number, it will be removed instantly. A simplified example just to illustrate:
<body> <input type="text" name="numbers" /> <!-- I want this input to accept only numbers --> </body>
