Prompt As A Variable To An Array?
Jun 19, 2011
I want a prompt box appear and tell the user to input a word,and have that word saved as a variable named word (for example), later I wish to run the variable through a Regex, and run an if statement in which i use the search method for the regex, if the variable is not -1 then i want to alert a specific part of an array. I probably got you going in circles, its hard to explain but basically i want to alert an array named whatever the user inputs, as long as i have the users input already made: for example: the user inputs a word and saves it as a variable named word, then i want to call an array that is the same as the users input.
example:
if he inputs hello,
i want to call for example the array hello[2]
if he inputs internet
i want to call the array internet[1]
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Nov 19, 2010
I am new to learning JS and am trying to create an array through a prompt. It seems to work, but I believe it is treating the prompted numbers as strings not numbers.I am parsing the negatives and zeros, and positives and counting them. It doesn't recognize the negative sign.Here's my js:
function counter()
{
var numArr = new Array(Number(prompt("Please enter and array of numbers, in any order, separated by a comma..." + '[code]......
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Mar 7, 2010
write a while loop that prompts user to enter name.add their names to an array.if they enter "exit" end the prompting
sort array and list in sorted order
-----------------------------------
this is what i got so far. sooo confused because i cant get the user input into an array
var names = new Array();
var loopCounter;
loopCounter = 0;[code]......
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Nov 15, 2011
I am playing about with javascript arrays.Have recently just sat today looking through w3c and going through pages in a w3c book i bought on javascript and ajex.if im wanting to display stuff to use a drop down box but i need to learn to use arrays as the course im studying in college is on javascript and i feel this would be beneficial for me personally to know.i want to know if its possible to as well as select data from the array but also to Input new data from a button that opens a prompt box for users to enter a new array object.
Code JavaScript:
<SCRIPT language="JavaScript">
<!--
function p_Names()[code].....
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Jan 30, 2010
I should warn, i know almost nothing about javascript. i've been trying read sample scripts and examples on how to modify this script; but I just don't know enough. I have a script that pulls data from an array, and copies it directly to the clipboard when a user clicks on it. The problem is this only works in IE, because Firefox doesn't by default allow that to happen. I'm trying to change it so that when it is clicked, instead, it takes what was going to be copied to the clipboard, and puts it in a Prompt box for the user to copy and paste. I had other scripts that do that, but I can't for the life of me figure out how to learn from it!
[Code]...
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May 11, 2011
<script>
// Declared Constants
MORSE_ALPHABET = new Array (
'.-', // A
'-...', // B
'-.-.', // C
'-..', // D
'.', // E
'..-.', // F
'--.', // G
'....', // H
'..', // I
'.---', // J
'-.-', // K
'.-..', // L
'--', // M
'-.', // N
'---', // O
'.--.', // P
'--.-', // Q
'.-.', // R
'...', // S
'-', // T
'..-', // U
'...-', // V
'.--', // W
'-..-', // X
'-.--', // Y
'--..' // Z
);
CHAR_CODE_A = 65;
var CTS = prompt('Enter Morse code','here')
var inMessage = CTS.split(' ');
searchLocation(inMessage,MORSE_ALPHABET)
function searchLocation(targetValue, arrayToSearchIn) {
var searchIndex = 0; // Iterative counter
for(i=0;i < targetValue.length;) {
targetValue = targetValue[i];
// Search until found or end of array
while( searchIndex<arrayToSearchIn.length && i != targetValue.length &&
arrayToSearchIn[searchIndex]!=targetValue) {
i++searchIndex++;
} if(searchIndex<arrayToSearchIn.length) {
return String.fromCharCode(CHAR_CODE_A + searchIndex);
} else {
return -1;
}}}
document.writeln(searchLocation(inMessage,MORSE_ALPHABET));
</script><head></head><body></body>
This is my code and I have figured it to create an array from the prompt and then use the function to return the first array it finds but I cant seem to make it go on to the next index of the array. I know that when you return a value the function closes and I have tried to store my return in a variable but its not working the way I want it to or I'm not writing the correct command or is there away to do multiply returns, I think what I need to do is simply but I have been staring at this screen for a while now and just cant see it.
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Mar 20, 2009
I am accepting an array, and a value of a variable to perform multiplication against my array, then write the product back into the array.
[Code]...
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May 3, 2011
I come from a Perl background, I am wondering how I make a variable into into an array name.. example:
Code:
Perl:
$variable = 'dog';
$dog{'test'};
to make this variable into the array name I would do this:
print ${$variable}{'test'};
how do i do this same thing in javascript?
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Feb 20, 2007
I am currently struck with getting this part working, basically, the results is a variable which has :
var results = obj.selectNodes('Search');
if(results)
{
var array = new Array(results.length);
for(i=0; i <= results.length; i++)
{
var name = getNodeName(results[i]);
array[i] = { 'name':name};
}
results = array;
}
In this , the results initially has 5 nodes and i create an array of length of results.length and assign the name . however at the end during the assignment of the array to results it stores the length as 6 where in there are only 5 nodes . the 6th one is null i.e no node exists please tell me why am i getting 6 instead of 5 nodes after going thru the for loop . before the for loop the results has the correct number of nodes as required.
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Mar 26, 2002
How do you test a variable is an Array or not in Javascript?
Indeed, I need to get the html checkbox info in an html form like this:
<html>
<script>
function test()
[code]...
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Mar 16, 2009
I'm trying to compare an array to a variable and see if it has the same value then output the second part of the array:
<script language="javascript">
var photoCaptionID0 = "13006";
var photoCaptionID1 = "24018";
var photoCaptionID2 = "13002";
[Code]....
So using this example. If any of the first section in the array captionID (24001, 13001, etc) has the same value as photoCaptionID0, then print the second part of captionID (Item 1, Item 2, etc).
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Jun 16, 2009
i hav an array named contents [i] where i wanna get every 3rd value out of it.below i make an example:
contents [i] = [2,4,6,8,10,12,14,16,18];
i wanna find a script dat could return every third value which is 3,6,9
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Dec 26, 2009
How to convert php variable so it could be used in a javascript section.
For example I have a php array named $places, it's a nested array and I'd like to traverse through all the elements of this array much like it's done in php =>foreach($places as $place) but this done in JS.
In a nutshell how do i convert this variable into a JS appropriate variable.
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Oct 20, 2010
If I assign an array to another variable, any changes to the array change both variables. Is it a pointer instead of a copy? Try this:
<script type="text/javascript">
Arr=['a','b','c'];
Arr2=Arr;
[code]....
Variables don't do this but it's happening for arrays in IE and FireFox, maybe all others.
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Dec 15, 2010
I am currently trying to check using javascript whether a php array contains a variable, and if it does then display a message.I have written the following code...
<?php
//php which sets users array to the results of the sql
$selectquery = "SELECT Username FROM User";
[code].....
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Nov 17, 2011
I need to use a javascript variable when reading a value from a asp array. Currently I have a windows app that has a webbrowser. The windows app invokes a javascript method through the webbrowser and this javascript method returns an object. This object is built in the javascript function using values which exist inside a classic asp array. The function that sits on the relevant asp page, is invoked from my windows app and then returns the object to the windows app is below.
function item(count){
var pid;
var description;
var fullprice;
var discountprice;
var quantity;
var size;
this.pid = '<%=SBagArray(0,count) %>'; //ProductId
this.description = "<%=SBagArray(1,count)%>"; //description
this.fullprice = <%=SBagArray(8,count) %>; //Fullprice
this.discountprice = <%=SBagArray(9,count) %>; //Discountprice
this.quantity = <%=SBagArray(6,count) %>; //Quantity
this.size = <%=SBagArray(2,count) %>; //Size
this.getPid = function() { return this.pid; }
this.getDescription = function() { return this.description; }
this.getFullprice = function() { return this.fullprice; }
this.getDiscountprice = function() { return this.discountprice; }
this.getQuantity = function() { return this.quantity; }
this.getSize = function() { return this.size; }
}
My problem is that the variable 'count' is not recognised by the asp. So, how can I use this variable in such a way that it works?
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Feb 6, 2011
I want to pass array[x] to a variable so that I can use the variable in .innerHTML. I've researched and not found a reference.
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Oct 21, 2011
In javascript is it possible to create a var name from an array value?
(I will assign to that name the return value of a function)
I have this example, I want to create a var name from array_example[0][1]. Is it possible?: code...
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Jun 16, 2010
$i=0;
echo '<script language="javascript">
var dA = new Array();[code]...
here i want to increment $i above code is not working,
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Mar 30, 2010
I was wondering if it is possible to put all the non null variables of an array into a string variable with spaces between each array value? For example, if array() is a text array and has 10 values, array(0) through array(9), with three of those values null, let's say array(3), array(5), and array(7) are null, is there a way to put the remaining seven values into a string variable with spaces between each array value?
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Sep 16, 2010
I have a database which writes to a webpage. The html has one field showing called client_userid with an id of client (see below)
<tr><td>
<span id="client"><WebObject name=client_userid></WebObject></span>
</td></tr>
The value returned in the table is a 7 digit number eg: 1234567 This web view may have one, a few or a thousand records showing depending on the search criteria. For the life of me I cannot find a script that will pass all returned field values to an array that will allow me to remove duplicates and add a hotlink to the individual number and showing the result in a new view of the original table.
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Mar 26, 2007
I am experience some problems reading a form variable from a
Javascript function. The point with this particular variable is that
its name has the following syntax:
<input name="tx_impexp[tt_content:159]"/>
I want to set this var to 1 from my javascript function, so I tried
to execute the following line of code:
document.frm_1.tx_impexp[exclude][tt_content:159].value=1;
Unfortunately the following error come up:
Error: missing ] in index expression
document.frm_1.tx_impexp[exclude][tt_content:159].value=1
--------------------------------------------------------------|
It seems Javascript expects to close down the bracket at the position
marked...An easy solution would be to change my var syntax but the
point is that I cannot since I am using an already made script and I
should not modify it.
Just wandering if this is due to a syntax error defined according to
Javascript specification language or there is something wrong with
this.
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Sep 25, 2011
I need little help with arrays :))
[Code]...
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Sep 26, 2011
I am trying to pass a variable from gsp to jquery. But I have a problam.I have variable a which contains 635 element. like this a = [2,555,43,32,43,........]Here I am grabing this value fromgsp to jquery..
<html>
<head>
<script>
[code]....
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May 6, 2009
I'm trying to use variable variable names using the window[] functionality. It works fine when you literally specify an array's base variable name, but I have a multidimensional array and would like to use window[] to build the name of the specific sub-array I'm looking for, like so:
// here's my multidimensional array
myArray = new Array();
myArray['id'] = 'foo';
myArray['sub'] = new Array();
[Code]....
However if temp is the name of a sub-array (e.g. 'myArray[sub]), and not the base array name(i.e. 'myArray'), then window[temp] evaluates to "undefined".
Can the window[] functionality handle this somehow, or do I have to resort to eval() or something else?
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Oct 22, 2009
What type of variable is an empty array element? I thought it was undefined, but i noticed that they have different behavior than undefined does:
var r=Array(1);
var s=r.concat([0,"",null,undefined]);
alert (s.toSource()) //==="[, 0, "", null, (void 0)]"
typeof s[0] //==="undefined"
typeof s[4] //==="undefined"
As you can see, 0 and 4 both === undefined. Yet, they don't have the same toSource()...
Is this special type named anything specific? Or more importantly, can it be detected outside of an array as being distinct from undefined? I am thinking this would be the same type as ({}).nonProp ...
I guess the question is actually, "can you tell the difference between uninitialized and undefined"?
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