Develop Reference

Need to get an array of the names of all applicationScope variables

In an application I am working on I need to get a list of the names of all applicationScope variable then I need to cycle through them and filter out the ones starting with a know string say $xyx. I thought that the applicationScope.keySet().
I'm using this code for starter:
var col = applicationScope.keySet();
var itr:java.util.Iterator = col.iterator();
if (itr.hasNext()){
var str:String = itr.next();
dBar.info(str,"Value = ");
}
if I put the variable col in a viewScope it shows a list of all the keys. but when I run the script the values displayed in the dBar info are not the keys but some other information that I'm not sure where it comes from.
I should just be able to iterat through the list of keys, am I missing something?
This code is in the before page loads event

After some poking around and experimenting I got this to work:
var col = applicationScope.keySet();
var itr:java.util.Iterator = col.iterator();
while (itr.hasNext()){
var str:Map.Entry = itr.next();
if (str.substring(0,9) == "$wfsLock_"){
//do stuff
}
}
so I'm now a happy camper.

Although your code works in SSJS, it is not correct (and that's why I don't like SSJS...).
The applicationScope is an implementation of the java.util.Map interface and the keySet() method returns a Set containing the keys in that Map. Every entry is (probably) a String (other data types like integers are actually also valid). The line
var str:Map.Entry = itr.next();
doesn't cast it to a Map.Entry: it doesn't really do anything: str remains a string.
The Map interface also has an entrySet() method that returns the entries (Map.Entry). You can use that to retrieve the key as well as the value:
var it = applicationScope.entrySet().iterator();
while (it.hasNext()) {
var entry = it.next();
print( entry.getKey() + " = " + entry.getValue() );
}
(in this code the print() line will use the toString() method of the key as well as the value to send information to the console)
I see from your code that you've installed my XPages Debug Toolbar. You can also use that to quickly check what's in the scopes and what the actual datatype is.

Extract values of substring of parameters from string [duplicate]

This question already has answers here:
How can I get query string values in JavaScript?
(73 answers)
Closed 8 years ago.
I have a string of the form
p1=v11&p1=v12&p2=v21&p2=v22&p2=v23&p3=v31 and so on
I want to get an array of all values for p2 in javascript, e.g. in this example it would be ["v21", "v22", "v23"].
How do I do it? Do I need to use regex?

You might want to have a look at a JavaScript function I wrote to mimic the $_GET function in PHP:
http://www.martinandersson.com/matooltip/js/ma_GET.js
Google the source code for this line:
returnMe[key] = $.parseJSON( decodeURIComponent(tmpArray[1]) );
The problem with my current implementation is that any old key already stored, will have his value overwritten. What you need to do is to check if the key is already present, if so, read the old value and store him back in an array before you push the new value onto the same array.
The particular line i quoted uses JQuery to make the value into a JavaScript object. If you don't want to use JQuery for this feature then you could use JSON.parse or some other third party library.
Hope it helps, write me a comment if you don't succeed and I'll get back to you.

Try this:
var string = 'p1=v11&p1=v12&p2=v21&p2=v22&p2=v23&p3=v31';
var rawParams = string.split('&');
var params = [];
var param = '';
for (var i in rawParams) {
param = rawParams[i].split('=');
if ('p2' == param[0]) {
params.push(param[1]);
}
}
I don't recommend RegExp here, since the problem is pretty easy to be resolved with one simple for loop.
EDIT:
For sake of any haters - here's the working example: http://jsfiddle.net/j7sY6/1/

For a regex solution:
var matchs = [];
var re = /p2=([^&]+)/g;
while (match = re.exec('p1=v11&p1=v12&p2=v21&p2=v22&p2=v23&p3=v31')) {
matchs.push(match[1]);
}
Output:
matches = ["v21", "v22", "v23"]

Storing array in localStorage with JSON in javascript

I have refereed this question and worked for me: so q1
Now Issue is that I have used JSON.stringify & JSON.parse to store array in localStorage. But when I run the code again and try to use JSON.parse on localStorage nothing get retrived. I dont know whats going wrong.
here is code:
function BankProDisplay() {
var myString = JSON.parse(localStorage['bankpro']);
var mySplitResult = myString.split(",");
for (i = 0; i < mySplitResult.length; i++) {
document.getElementById('bankpro').innerHTML = document.getElementById('bankpro').innerHTML + mySplitResult[i] + "<br/>";
}
}

var myString = JSON.parse(localStorage['bankpro']);
JSON.parse returns a javascript object, not a string, which would not have a split method.

If you store an Array in LocalStorage using JSON.stringify, then you get it back using JSON.parse, return value is Array, not string. So when you are using function mySplitResult for myString (which is actually Array, thanks to JSON.parse), then it leads to an Error. So remove function mySplitResult and it should work fine.

Javascript Computed Values With Arrays

Jquery Each Json Values Issue
This question is similar to above, but not the same before it gets marked duplicated.
After realasing how to use computed values i came across another issue.
In my javascript i have the following code:
var incidentWizard = ['page1.html','page2.html','page3.html'];
var magicWizard = ['page1.html','page2.html','page3.html'];
var loadedURL = 'page1.html';
The input to this function would be (true,'incident')
function(next,wizardname)
{
var WizSize = incidentWizard.length;
wizardName = [wizardName] + 'Wizard';
var wizardPOS = jQuery.inArray(loadedURL,incidentWizard);
And now i want to use the wizardname parameter to decide what array i am going to use...
Loader(incidentWizard[wizardPOS],true);
Ive also tried
Loader([incidentWizard][wizardPOS],true);
and
Loader([incidentWizard][wizardPOS],true);
Also the loader function just required the string value in the array at wizardPOS sorry for confusion
But when trying this i always end up with the outcome...
/incidentWizard
I know this is something to do with using computed values but i've tried reading about them and cant seem to solve this issue.
Basicly i want to use the computed value of wizardName to access an an array of that name.
Please help supports, looking forward to seeing many ways to do this!

On this line:
wizardName = [wizardName] + 'Wizard';
You are attempting to concatenate the string 'Wizard' to an Array with one string element "incident". I'm assuming you just want regular string concatenation:
wizardName = wizardName + 'Wizard';
However, now you only have a string, not an array instance. To fix that, change the way you define your *Wizard arrays to something like:
var wizardyThings = {
incidentWizard : ['page1.html','page2.html','page3.html'],
magicWizard: ['page1.html','page2.html','page3.html']
};
Then your function (which is missing a name as it stands), becomes:
function someMethod(next, wizardname) {
wizardName = wizardName + 'Wizard';
var wizSize = wizardyThings[wizardName].length;
var wizardPOS = jQuery.inArray(loadedURL, wizardyThings[wizardName]);
...
}

You can only access properties of objects that way. For global values, window[ name ] will work. For simple local variables it's just not possible at all. That is, if inside a function you've got
var something;
then there's no way to get at that variable if all you have is the string "something".

I would just put each array as a prop on an object:
var obj {
incidentWizard: ['page1.html','page2.html','page3.html'],
magicWizard: ['page1.html','page2.html','page3.html']
};
Then you can just do obj['incidentWizard'] or obj.incidentWizard this will return:
['page1.html','page2.html','page3.html']

Parsing every element of an array as an integer

I have a string which I need to split into an array and then perform mathematical functions on each element of the array.
Currently I am doing something like this. (Actually, I am doing nothing like this, but this is a very simple example to explain my question!
var stringBits = theString.split('/');
var result = parseInt(stringBits[0]) + parseInt(stringBits[3]) / parseInt(stringBits[1]);
What I would like to know is if there is a way I can convert every element of an array into a certain type that would stop me from having to explicitly parse it each time.

An easier method is to map to the Number object
result= stringBits.map(Number);

javascript 1.6. has map() ( https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Objects/Array/Map ), so you can do something like
intArray = someArray.map(function(e) { return parseInt(e) })

You can just loop through it:
for(var i = 0; i < stringBits.length; i++) {
stringBits[i] = parseInt(stringBits[i]);
}

["1","2"].map(Number)
result: [1,2]

If you add a plus (+) sign in front of your strings they should be converted to numeric.
For example, this will print 3:
var x = "1";
var y = "2";
alert((+x) + (+y));
But I am not sure if this is portable to all browsers.
Your code will become:
var stringBits = theString.split('/');
var result = (+stringBits[0]) + (+stringBits[3]) / (+stringBits[1]);
But this is just a hack, so use with care.
I think the parseInt states better what you are trying to do, but you should delegate this responsibility to another method that returns the final data that you need to process. Convert and then process, don’t convert while processing. Your code will be easier to read.