I need to convert a string such as "x*y+2" (from an input text field) into an expression x*y+2, so that it can be evaluated normally, eg f=x*y+2. The variables x and y are already defined and can have various values; I need to evaluate the strings as expressions.
I have tried f=Number("x*y+2") but it seems to work only when the string is actually a number such as "1.2e-4".
Possible Duplicate:In Flash, how would I run an e4x statement when that statement is stored in a String?I know there is an existing question regarding this problem, but it got no replies.Ideally, I would like to stick an e4x expression in a string and run it.
var tempXML:XML = someXML;
var stringe4x:XML = "pictures.picture.(size > 200)";
tempXML.eval(pictures); //something instead of eval
Since AS3 doesn't have eval, this doesn't work; however, there is the ability to use elements() and attributes() to get the elements or attributes on the same XML node level, but this doesn't work for the more complicated e4x filters such as "(id > 300)" or ".." notation.
I need to evaluate an expression in a string at run time . Not sure how to achieve this in Flex. My requirement is as follows
var test:String = "myparams.id=10" ;
//test will be a string populated at runtime.
// I need to treat it as an expression and evaluate it at runtime
[Code]....
is it possible to do something like this action script 3?
I believe the eval function earlier allowed this, but now it has been depreciated?
I have a string "5^2". Is there a way to calculate the value of the expression stored in the string?
View 3 RepliesI'm trying to find the number of newlines in a string using the Actionscript 3.0 RegExp engine. Using the string.match function and RegExp(" ","g") does not find the newlines in a string which contains newlines. Is there something I need to add to the pattern or something else that I am missing?
View 1 RepliesI have the following function:
Code:
getInfo = function (input, arrayData, desiredResult)
{
[code].....
I am using RegExp to search for character sequences within strings. I was wondering if/what is the proper way to use a string stored in a variable as a regular expression. For example: [code]I'll have to use another string manipulation tool to search for the sequence.
View 5 RepliesI want the user to input a regular expression, which is then used.
I'm using following at the moment.
PHP Code:
var filterEx = new RegExp(filterTxt.text.split("/")[1], filterTxt.text.split("/")[2]);
filterTxt is a textbox, when traceing the pattern is seemingly correct, but i.e.:
[Code]...
give me the Regular Expression that can check if a given string has any HTML code in it, and coming to think of it I would be bothered with <a href="something">something</a> exactly.
View 2 Replieshow do convert the myString var which is a string to the class name?
var myString:String = "movieClipInTheLibraryClassName"
var t:myString = myString()
Does anyone know the regular expression to test if a single string character has both upper and lower case character?
eg. All A-Z and a-z.
I want to take the following information, which I have as a string in Flash, and convert it into an XML object in AS3:
// information
<list>
<a>
[code].....
I'm trying to convert an variable that contains XML data to a String. Anyone have a clue on how to achieve this?
My main problem is that the XML data is formatted nicely, but I need to store it in the database without the linebreaks and tab stops and whitespaces.
I think converting it into string would work with .toString();, but that doesn't get rid of the XML formatting...
Code:
function f_choosePhoto(photoNum)
{
var photos:Array = ["photo0","photo1","photo2"];
[Code].....
I've cobbled the AS together from a couple of seperate tutorials, and if I replace "new this[path](560, 380);" with "new photo1(560, 380);" it works.
I want to simply some repetitive code like this:
letter1.gotoAndPlay(Math.round(Math.random()*letter1.totalFrames));letter2.gotoAndPlay(Math.round(Math.random()*letter2.totalFrames));letter3.gotoAndPlay(Math.round(Math.random()*letter3.totalFrames));
I want to store letter1... into a string array. so I can call all of them with a loop.
Been searching for a simple way to do this but it's not out there, or is it?
I simply need to convert a sting to an int. The string will be a number, that is a given.
So I am trying to take an XML document, load it in, then organize the elements into an array of Objects with the elements nodes as the properties of each object.All of that I am able to do so far.What is the real problem here for me is when I try to take one of the properties and try to assign it to a dynamic Textbox's .text property.I can trace the object property, but it will not go into a textbox.[code]Also, I noticed that when the code hits the first output error, it never executes the rest of the code in the changeQuestion function; or else I would have gotten more than one output error.
View 3 RepliesIs there anyway to convert an XML to string(whitout the tags) ?
View 5 RepliesI have an array of string values that represent accessors to another array. I need to be able to use those to access the secondary array, so I need to find a simple way to convert the string to the actual array accessor.[code]...
However, it seems like there should be some way to cast the string into AS, that Flash can use to access the proper array, without having to do the complex string.slice statement.
Something like: var str:String = ActionScript(arr3[i]); would be much easier to type, as many times as I'm going to need it, than the .slice statements.
It is possible to converta string to a name?want to make a text to speech project that plays the sounds by name and i use the charAt function to split the text.[code]...
View 9 Replieshow to convert a string to an int...here's the thing when I use Number(myVar) it returns NaN. The string that I am trying to parse has a leading number followed by because I'm using loadVars and in order to make it more readable I'm trying to make a new variable on everyline....how I can do this I just need to remove the
.
Is there a way to write a UTF-16 string into a ByteArray in Flash/AS3? Basically I have a string (var test:String="allan"; for example) and I would like to write that into a ByteArray with UTF-16(LE) encoding. In this case it would be "61 00 6C 00 6C 00 61 00 6E 00".
I've tried using utf16le.writeMultiByte( clipText, "utf-16" ); but it just comes out with what appears to be UTF8 (or just straight ASCII given the test string).
Is it possible to convert a string to hexadecimal? For instance I have a string that says "Hello World" I want the output to be 48656C6C6F 576F726C64
View 2 Repliesi have a simple dynamic textbox and want to store the TotalTime-property (= seconds of the video) of my video (flvplayback component) into this textbox. how can this super-easy thing be done?
View 1 RepliesIs is possible to convert a string (i.e. "+") to an operator which I can use for a mathematical statement?
View 4 RepliesHow can i convert CDATA string to AS3?For example,
<![CDATA[
trace("String");
function Execute()
{
mc.stop();
}
]]>
i need to execute the trace and Execute function in Flash AS3?
how do we convert string which we get by reading a XML into date type instance value???
so there is a XML which has modifiedDate as an atribute on one node of the XML and how i do put that value into a variable of date instance??
the timeformat in the XML is: mm/dd/yyyy hh:mm:ss => 12/31/2010 23:57:46
i choose this time format because i want to use the .parse() method which still cause some error but this is for another topic..
I want to convert a textbox value to numric value and i use a code like this :var n:Number = Number(myTextbox.text);when i trace the variable (n) it gives me 0. although when i trace myTextbox.text , it gives me the right value.
View 1 RepliesI have a string in XML format and I want to use this string as flex XML type as following : This is my string :
<Graph>
<Node id="1" name="1" nodeColor="0x333333" nodeIcon="center" x="10" y="10" />
<Node id="2" name="2" nodeColor="0x333333" nodeIcon="center" x="10" y="10" />[code].....
I cant pass this to an API, it complains that this is string and it expects an XML type. How can i convert this string to XML with minimum effort, ie: without iterating the string and the nodes etc. Is there such method as : var data:XML = new XML(str:String);
How do I convert an integer to a string value? This must be easy. "Ya guys in SO are da best at explaining." I'm still working on these dumb counters.
NEED TO JOIN THIS TOGETHER
//My counter project "sends to dynamic text field"
var timer:Timer = new Timer(10);
var count:int = 0; //start at -1 if you want the first decimal to be 0
[Code]....