Comments on MXUnit Blog: Looping over an array in CFScript

just a thought : you don't have to convert the lis...

2010-01-29T15:52:23.427-05:00

just a thought : you don't have to convert the list into an array. you can also use:

list = "ten,eleven,twelve";
for (j=1; j lte ListLen(list); j++) {
writeOutput('...');
writeOutput(listGetAt(list,j) & '
');
}

@Marc Once again, another great tip to file away....

2009-10-30T11:39:06.968-04:00

@Marc

Once again, another great tip to file away. very cool!

-Mick

great information guys. Thanks. Micky, your frien...

2009-10-30T09:06:12.778-04:00

great information guys. Thanks.

Micky, your friend needn't decompile if he simply wants to see the inheritance tree, available methods, etc. I whipped this up really quick to give a quick and dirty view of a CF Array, but you could use this for just about any cf datatype. note this is literally about 15 minutes of work, just to give me a fast idea of what's what:

<cfscript>
a = ["one","two"];
writedump(var=getMetadata(a),expand=false);
s = {key1="hi mom",key2=a};
writedump(var=getMetadata(s),expand=false);
writedump(createDirtyStructView(a));
writedump(createDirtyStructView(s));

public struct function createDirtyStructView(someVar){
var cls = someVar.getClass();
var data = {className=cls.getName(),exceptions=[],methods=[],interfaces=[],parent=cls.getSuperClass().getName(),tree=[]};
var classes = cls.getClasses();
var methods = cls.getMethods();
var interfaces = cls.getSuperClass().getInterfaces();
var i = 1;
//writeDump(methods);
for(i=1;i<=ArrayLen(classes);i++){
arrayAppend(data.exceptions,classes[i].getName());
}
for(i=1;i<=ArrayLen(methods);i++){
arrayAppend(data.methods,methods[i].getName());
}
for(i=1;i<=ArrayLen(interfaces);i++){
arrayAppend(data.interfaces,interfaces[i].getName());
}

var thisParentClass = cls;
var thisParentName = thisParentClass.getName();
arrayPrepend(data.tree,thisParentName);
var sentry = 100;
while(thisParentName != "java.lang.Object" && i < sentry){
thisParentClass = thisParentClass.getSuperClass();
thisParentName = thisParentClass.getName();
arrayPrepend(data.tree,thisParentName);
i++;
}
return data;
}
</cfscript>

last post on this promise. using a java arraylist...

2009-10-30T03:30:43.838-04:00

last post on this promise.

using a java arraylist with iterator is 500x faster than cf's for loop and cf for loop using iterator.

createobject("java", "java.util.ArrayList");

-Mick

Mark Mandel pointed out that this may be slower si...

2009-10-30T02:59:02.034-04:00

Mark Mandel pointed out that this may be slower since it uses reflection via JavaProxy. Something to consider!

-Mick

good tip,marc! challenged me to see if i could mak...

2009-10-29T22:48:41.678-04:00

good tip,marc! challenged me to see if i could make it smaller ... i wonder just how small a cf loop could be?

for(i=-1;++ilt;myarray.size();) {
...myarray.get(i);
}

I wish CF9 add the for..in loop support for array....

2009-10-29T21:11:53.443-04:00

I wish CF9 add the for..in loop support for array. Looping an array is easier using <cfloop array=""> than cfscript.