split variable

[mikemastah]

I was wondering is it possible to split a variable per 3 characters like split(" "); but not split at a space but really every three characters.

[Floydian]

Re: split variable

 

stringVariable.slice(startIndex, endIndex);

 

Using that, if you keep adding 3 to startIndex and endIndex, in a loop, you can achieve what you want.

Hope that helps...

[mikemastah]

Re: split variable

looks like what I need but I need some help to use it I'm afraid.

At this time I have a var 'mrnaCodes' which is the value of an input field.

I used to do this "var mrnaArray = mrnaCodes.split(" ");" for the input with spaces (ex1)

 

BLA BLA BLA BLA BLA

but now I want them able to choose between ex1 and ex2.

 

BLABLABLABLABLA

I do need however the same array

mrnaArray[0]="BLA"

mrnaArray[2]="BLA" etc.

[mikemastah]

Re: split variable

ah, figured it out.

/*User input*/
var mrnaCodes = "AAAUUUCCCGGGAAAUUUCCCGGGGGGCCCUUUAAA";

function someThing(); {
var startSlice = 0;
var mrnaArray=new Array();

 while(startSlice<mrnaCodes.length) { 
   endSlice = startSlice+3;
   var i=startSlice/3;
   mrnaArray[i] = mrnaCodes.slice(startSlice,endSlice);
   startSlice = startSlice+3;
   }
}

 

thanks for the help

[Floydian]

Re: split variable

You're welcome for the help, and glad that worked for ya.

Yes, that's exactly how to do that, good job ;)

One suggestion: To automatically tell javascript to add an element to the end of an array (similar to PHP's method: $array[] = $next), use this:

mrnaArray[mrnaArray.length]

This will only work with numeric arrays, of course.

[mikemastah]

Re: split variable

ok, thanks for the info. I changed it.