In action script var x:String="123abc" I have to check any character, for that string.
i.e. here "abc" is that string so I give an alert that this string should contain only numbers.
How can I do that?
Do you mean to say that you would like to dispatch an alert if a string contains letters
var testVar:String = '123abc';
var pattern:RegExp = /[a-zA-Z]/g;
if( testVar.search(pattern) == -1 )
{
//all good there's no letters in here
}
else
{
//Alert, alert, letter detected!
}
the "pattern" variable is a RegularExpression that's adaptable. Here I'm only checking for letters... If you need more control, get more info about RegularExpressions or come back here with the specific filter you'd like to implement.
I think you are looking for Regular Expression support in AS3.
If the user is inputting text via a TextField then you can set the restrict property to limit the characters that can be entered into the textfield:
textFieldInstance.restrict = "0-9";
TextField.restrict documentation:
http://livedocs.adobe.com/flex/3/langref/flash/text/TextField.html#restrict
Related
I followed this Search demo, and am trying to expand it to only search on specified attribute names.
It works without an attribute name, and returns an array of matching ids. But if I supply anything for the attribute name then search returns an empty array. I am guessing I need some magic formating for the attribute name.
So currently I have:
function search() {
var txtArea = document.getElementById("TextAreaResult");
var searchStr = document.getElementById("SearchString").value;
var searchProperties = document.getElementById("SearchProperties").value;
if (searchStr.length == 0) {
txtArea.value = "no search string.";
return;
}
var viewer = viewerApp.getCurrentViewer();
viewer.clearSelection();
if (searchProperties.length == 0)
viewer.search(searchStr, searchCallback, searchErrorCallback);
else {
var searchPropList = searchProperties.split(',');
viewer.search(searchStr, searchCallback, searchErrorCallback, searchPropList);
}
}
where searchProperties is a user input, eg "Name", and searchPropList becomes a single element array.
The same example also covers getProperties(), which returns displayName and displayCategory for each property, but I don't see a separate internal name.
Am I missing something obvious from here or do I need to transform "Name" in some way.
Or does someone have an example that will list the true name rather than displayName?
The Autodesk.Viewing.Viewer3D.search() method is NOT case sensitive on the text parameter, but it IS case sensitive on the attributeNames parameter, and you need to use the full name of the attribute.
We're now (Aug, 25, 2016) updating the documentation.
I'm reading XML and attaching values to objects in two seperate movieclips. Like this
Map01:
Marker01.name = hello there
Marker01.short = hel
Marker01.value = 12
Map02:
Marker02.name = hello there
Marker02.short = hel
Marker02.value = 99
Now I'm clicking on Marker01 in Map01 and get its name and value. I want to compare its value to that of Marker01 in Map02, using the name, or better yet .short because the names are long and use special characters/spaces. How do I do this? I've pretty much tried everything that seemed logical!
EDIT: sample code for clarification
var marker01:mc_marker = new mc_marker();
marker01.name="hello there";
marker01.short="abc";
marker01.val="99";
marker01.x=10;
marker01.y=10;
this.mc_map01.addChild(marker01);
var marker02:mc_marker = new mc_marker();
marker02.name="hello there";
marker02.short="abc";
marker02.val="20";
marker02.x=10;
marker02.y=10;
this.mc_map02.addChild(marker02);
marker01.addEventListener(MouseEvent.MOUSE_UP, showMarkerInfo);
marker02.addEventListener(MouseEvent.MOUSE_UP, showMarkerInfo);
function showMarkerInfo(event:MouseEvent):void {
txt_ms.text=event.target.short;
txt_mv.text=event.target.val;
if (event.target.short==mc_map02.marker02.short){
txt_mvi.text="here should be the marker02 value";
}
}
You have a typo there. Map02 use Marker1 things.
If its a typo in Stackoverflow,
this.getChildByName( "Marker01" ) will return you the movieclip, buy its name. take care though, as "name" is what it searches for. You used "hello there" when you should put Marker01 as the name. I would suggest you put a property called "data" and put the xml info in it so it doesn't conflict.
In the end you have:
if( this.getChildByName( "Marker01" ).data.value == this.getChildByName( "Marker02" ).data.value ).
I assume this is because you generate Marker0X at runtime and you can't declare some variables and use them directly.
Browny points if you make "data" a instance of a custom class where you can compare two "data". If you need more help, add a comment ^_^
I guess a step back is in order. My original question is at the bottom of this post for reference.
I am writing a word guessing game and wanted a way to:
1. Given a word length of 2 - 10 characters, randomly generate a valid english word to guess
2.given a 2 - 10 character guess, ensure that it is a valid english word.
I created a vector of 9 objects, one for each word length and dynamically created 172000
property/ value pairs using the words from a word list to name the properties and setting their value to true. The inner loop is:
for (i = 0; i < _WordCount[wordLength] - 2; i)
{
_WordsList[wordLength]["" + _WordsVector[wordLength][i++]] = true;
}
To validate a word , the following lookup returns true if valid:
function Validate(key:String):Boolean
{
return _WordsList[key.length - 2][key]
}
I transferred them from a vector to objects to take advantage of the hash take lookup of the properties. Haven't looked at how much memory this all takes but it's been a useful learning exercise.
I just wasn't sure how best to randomly choose a property from one of the objects. I was thinking of validating whatever method I chose by generating 1000 000 words and analyzing the statistics of the distribution.
So I suppose my question should really first be am I better off using some other approach such as keeping the lists in vectors and doing a search each time ?
Original question
Newbie first question:
I read a thread that said that traversal order in a for.. in is determined by a hash table and appears random.
I'm looking for a good way to randomly select a property in an object. Would the first element in a for .. in traversing the properties, or perhaps the random nth element in the iteration be truly random. I'd like to ensure that there is approximately an equal probability of accessing a given property. The Objects have between approximately 100 and 20000 properties. Other approaches ?
thanks.
Looking at the scenario you described in your edited question, I'd suggest using a Vector.<String> and your map object.
You can store all your keys in the vector and map them in the object, then you can select a random numeric key in the vector and use the result as a key in the map object.
To make it clear, take a look at this simple example:
var keys:Vector.<String> = new Vector.<String>();
var map:Object = { };
function add(key:String, value:*):void
{
keys.push(key);
map[key] = value;
}
function getRandom():*
{
var randomKey = keys[int(Math.random() * keys.length)];
return map[randomKey];
}
And you can use it like this:
add("a", "x");
add("b", "y");
add("c", "z");
var radomValue:* = getRandom();
Using Object instead of String
Instead of storing the strings you can store objects that have the string inside of them,
something like:
public class Word
{
public var value:String;
public var length:int;
public function Word(value:String)
{
this.value = value;
this.length = value.length;
}
}
Use this object as value instead of the string, but you need to change your map object to be a Dictionary:
var map:Dictionary = new Dictionary();
function add(key:Word, value:*):void
{
keys.push(key);
map[key] = value;
}
This way you won't duplicate every word (but will have a little class overhead).
I'm attempting to alter the contents of certain parts of a HTML form through usage of the URL. For a text field, I'm aware that this will suffice,
http://<domain>?fieldname=ping&anotherfield=pong
On the form there are multiple select braces (drop down boxes); Is it possible to pick an int or string value through the url for this?
There seems to be little documentation on this (or even people trying to do the same)...
You haven't specified how you want to do this, but I'll assume that you want to use JavaScript:
To get a value from QueryString:
getQueryStringArgument = function(key) {
var hu = window.location.search.substring(1);
var gy = hu.split("&");
for (i = 0; i < gy.length; i++) {
var ft = gy[i].split("=");
if (ft[0] == key)
return ft[1];
}
}
To set the selected value of the select list:
document.getElementById("sel").value = getQueryStringArgument("id");
For a text field, I'm aware that this will suffice
No, it won't (at least, not in a generic way).
For a text field, the default value is specified by the value attribute. There might be a server side script that populates it based on query string data, but there doesn't have to be.
On the form there are multiple select braces (drop down boxes); Is it possible to pick an int or string value through the url for this?
Again, this requires an attribute to be set (selected on <option>), and that could (again) be set by a server side script based on the query string data.
I wrote a AS3 script, i have 2 fields to validate, i.e email and name.
For email i use:
function isValidEmail(Email:String):Boolean {
var emailExpression:RegExp = /^[a-z][\w.-]+#\w[\w.-]+\.[\w.-]*[a-z][a-z]$/i;
return emailExpression.test(Email);
}
How about name field? Can you show me some sample code?
EDIT:
Invalid are:
blank
between 4 - 20 characters
Alphanumeric only(special characters not allowed)
Must start with alphabet
I think you probably want a function like this:
function isNameValid(firstname:String):Boolean
{
var nameEx:RegExp = /^([a-zA-Z])([ \u00c0-\u01ffa-zA-Z']){4,20}+$/;
return nameEx.test(firstname);
}
Rundown of that regular expression:
[a-zA-Z] - Checks if first char is a normal letter.
[ \u00c0-\u01ffa-zA-Z'] - Checks if all other chars are unicode characters or a space. So names like "Mc'Neelan" will work.
{4,20} - Makes sure the name is between 4 and 20 chars in length.
You can remove the space at the start of the middle part if you don't want spaces.
Hope this helps. here are my references:
Regular expression validate name asp.net using RegularExpressionValidator
Java - Regular Expressions: Validate Name
function isNameValid(firstname:String):Boolean
{
var nameEx:RegExp = /^([a-zA-Z])([ \u00c0-\u01ffa-zA-Z']){4,20}+$/;
return nameEx.test(firstname);
}
{4,20} instead {2,20}
Problem avoided for names like Ajit