What am I doing wrong I want to add an Array to a string, but the alert won't write the array?
Code JavaScript:
var placestosee = ['newyork','people','laundry','stores'];
alert('One place to see is the'+'placestosee[2]'+);
I get strings in this format:
([{"result":"-1","message":"Error","target":""},{"result":"-2","message":"Access Denied","target":""}])
this string will evaluate to a 2D array if I do this:var array = eval(string);But eval is not very safe.Is there a way to achieve the same effect (turn that string into 2d array) without using eval function?And I have no control over what string I am given, so will have to process this kind of a string =Right now I am thinking of writing a custom function which will split the string and then split again etc, but is there already something that can do this job?
How I can convert a string to a json array.
start code:
The problem is that .css treats snip[1] as a string but I need it to handle it as a json array.
Bad: .css
Good: .css
Is it possible to break apart a string into characters, be it a word or a sentence, and store each individual character in an array?
View 11 Replies View Relatedalert("Value is " + array[4]);
It just says "Value is undefined" but I have put a value in array[4]
please can anyone help?
Im trying to write a program that determines if an array is Ragged or not.
document.writenln("Ragged or not<br />")
if (raggedOr(a))
document.writenln("Array is Ragged");
[code]....
Having a small problem with writing out the matches from an array using a For loop.
I have two arrays, lets say arrayA and arrayB. In arrayB are numbers which are a number of miles, ie 1,2,6,4,5,6,6. And in arrayA are the days of the week. Each day of the week is associated with a mileage, ie Mon = 1, Tues = 2 etc.
My script has found the largest mileage in arrayB. Next I have to find the days of the week that match this highest mileage and write these out, along the lines of "The highest mileage was 6 run on Wed, Sat, Sun."
I have managed to get a For loop to work with this BUT..... I can only get it to write out the first instance of the day the match is found. ie "The highest mileage was 6 run on Wed,"
[CODE]
maximumDistanceIndex = 0;
for (var distance = 1; distance < distanceArray.length; distance = distance + 1)
{
[Code]...
How do you alert a new array list ? code...
I want a alert of the array list after the pushing,pop'ing and splicing to appear before the alert of which array to display which is alert.people[5]. code...
I know what attributes are. But I am stuck at the attribute property. So heres what i am trying to explain : I have form with an id "form0" . Its has some attributes. So i wrote this code, pasted in address bar while the form was loaded and hit enter:
Code:
javascript: (function klo() {
var k = document.getElementById("form0");
alert(k.attributes);
})();
And I got this in alert box :
Code:
[object NamedNodeMap]
Now k in the above code is an array of attributes so basically I should be getting the array of attributes in alert box?
I've got a radio group and a checkbox array on my page. An alert pops up if none of the radios (in the group 'test') are check but I also need an alert if no checkboxes (within the array box[] ) are selected? Anyone know how I validate the checkboxes so at least 1 has to be selected?
[Code]...
NEED INPUT VALUES TO MATCH ARGS ARRAY OR THROW AN ALERT
This is what I have but I want the alert to refrence the var args= or throw the alert.
Code:
Input values to match args array or throw an alert. This is what I have but I want the alert to refrence the var args= or throw the alert.
function qtymultiply(qty){
var fs=qty.parentNode.parentNode;
var subtotal=document.getElementById('subtotal');
[Code]....
I can't alert the history array of the index page or use that arrays indexOf to read and write it to go back to predetermend conditional index of that array? If I could alert the history array and read the array elements then I might be able to write and go to one of the history array elements specificaly? So I might be able to use window onload to create an array that stores the classname of a div every time the divs classname is changed then go back in page history to the classname specified? code...
View 8 Replies View RelatedI have an array:
I have a string:
I would like to use the value of array_string (array_123) as an array to parse out the values of it. But this isn't working:
i need to ask the user for details about a car, i will not know how many cars are going to be stored and therefore need an array i think. I need the function for asking the user and will need to repeat the code later in a menu. at this stage i just want to ask the user for input, store it in array and use an alert to check if it works?
<html>
<script>
// Purpose: Gather car information and store it in a datbase
// Ask user for REG info, CAR MAKE, car VIN
var CarDetails = {
RegNum:"",CarMake:"", CarVin:"";
}
[Code]...
I need some advice regarding wrote a javascript function.
The function purpose is to check the variable "selectedSeat",
for e.g if the selectedSeat value is
var selectedSeat = "A:01|A:03|A:05|B:01|B:02|B:03";
var selectedArray = selectedSeat.split("|");
because row A is not in sequence , i will display alert box to
user,but row B is in sequence is ok.
Main purpose of function is check if the row is in the sequence.
I have been cracking my head about this , anyone have suggestion is
much appreciated.
So i've written up the code to do a lightbox esque overlay image gallery. everything is working smooth and fine. The only concern is that I have the following:
lets say that I have a page that has multiple galleries. Obviously I would have to make each literal array with the gallery data different names, ex:
var _gallery1 = {
'images': [
{ 'id' : 1, 'src' : "" }
]
[Code]....
obviously "galVariable" would be undefined... as i'm trying to get "_gallery2.images" but trying to use "galVariable" to point to "_gallery2"
I'm familiar with solving a problem like this in PHP, not so much javascript. is there a JS function that can be used to ensure that it's using whatever "galVariable" equals to, and then that array's content is? Or is there a different way to go on about this.
I have code...
how can I convert these to an array so I can loop through the values?
What I'm trying to do, I think, is to use elements of an array as a part of an object. Here's a lil' code snippet:
Code:
I'm trying to insert each of the elements of the katMusik-array into the checked-line, thus checking the checkboxes with those names. However, it doesn't seem to work.
I am getting a string with the value of the clicked button from an array and some other select field values that are listed in the same set of mysql results as the clicked button.At the end of the script the page is redirected to in the script mentioned page with following string:process.php?value=1&bs=2&ad=3&ns=4&wt=5&in=6
Is it possible to make locationstring variable global and in a single line in order to be able to use the full string in other scripts or is there another solution.
I'm trying to turn an associative array key into a string. I know I can do that in php with a foreach loop like foreach ($array as $key => $value) and then I can do whatever I want with the key. I want to be able to loop through a javascript array using a for in loop and test to see if the key matches part of the name attribute of some inputsIs there a way to do this? I looked online and I found a way to turn a string into a variable name but not the reverse
View 2 Replies View RelatedI need to convert a string
lalaw|lalaw1|lalaw2|lalaw3
in to Array
The values I have in variable "tables".I want to create variable list which takes values from "tables".Than I want to split this, and put each value in to new array: I've started with:
var list = "tables";
var listArray = list.split("|");
for(i=0; i < listArray.length;i++)[code].....
//? how to put now values in to array?
if I have an array where the number are write in string format, how can I recognize when a string is in realty a number? example if I have this:
"50"
"house"
"light"
"100blue"
"yellow20"
"-100"
"20,5"
how can with a cicle to extract only:
50
-100
20,5
?
I'm not entirely familiar with the norms and standard libraries of
JavaScript so if the answer to this is yesterday's news, please ignore.
I'm trying to write a simple text formatting function to make headings
proper case -- i.e. first letter of words capitalized.
I first tried this...
function inProperCase(s)
{
var result, i, k;
i = 0; result = s.toLowerCase();
while ((k = result.indexOf(' ', i)) -1) {
if (k - i 0) {
result[i] = result[i].toUpperCase();
}
i = k + 1;
}
if (result.length - i 1) {
result[i] = result[i].toUpperCase();
}
return result;
}
...but it didn't work. To my amazement, you cannot set a character in a
string by accessing that character with an index, like so:
s[i] = ch;
Must be because JavaScript strings are "Immutable" or "EtchedInStone" or
something. (Just kidding, no flames, please. I'm sure it is more
efficient.)
The only thing I could come up with was this (with some details, like the
"compound" while predicate, modified into a more readable form after being
called a "C-bigot" by a friend :)) which seems pretty heavy-handed with all
the string slicing and concatting:
function inProperCase(s)
{
var result = s.toLowerCase(),
i = 0, k = result.indexOf(' ', i);
while (k -1) {
if (k - i 0) {
result = result.substring(0, i) +
result[i].toUpperCase() +
result.substring(i+1, result.length);
}
i = k + 1;
k = result.indexOf(' ', i);
}
if (result.length - i 1) {
result = result.substring(0, i) +
result[i].toUpperCase() +
result.substring(i+1, result.length);
}
return result;
}
You call this as...
inProperCase(" madam i'm adam ");
...and you get...
" Madam I'm Adam "
Any suggestions for making this a bit more elegant?
BTW You may point me to a "library" with a super-efficient implementation
of this function, but that is not the point. My issue is, how do we update
single characters in a string (or single items in an array) in JavaScript?
Is it something like...
s.wouldYouCareToUpdateThisChar(i, ch); // :D (just kidding, calm
down...)
-or-
s.setCharAt(i, ch); ...
I've searched on the form and found answers but I cant get it fix for me. want to make a form with multiple rows with checkboxes. Firt I did it in PHP and it worked but I want to use Jquery. How can I get the checked checkboxes to a string?It thought it would be something like this (found it on this site):
var test = $(':checkbox').map(function() {
return this.id;
}).get().join(',');
[code]....
How can I split a piece of text like the following :
/mysite/subSection
into an array like the following :
array(
[0] => mysite
[1] => subSection
);