Removing elements from a Dictionary

Haxe
#1

Is there a “right” way of removing an element from a Dictionary?

In AS3, I would use the delete statement:

delete myDict[keyName];

In openfl, the Dictionary class doesn’t seem to have any sort of mechanism to remove an entry. Right now what I’m doing is, I assign null to a key. Unfortunately, this still means the entry “exists” and it comes up in for loops.

Is there a better way to do this?

#2

It’s probably better to use Map instead.

#3

so what I ask is impossible?

#4 
myMap.remove(keyName);

-> http://api.haxe.org/Map.html :wink:

#5

…if myMap is not a Dictionary. Which it is, because I’m converting a lot of code from as3 with a script.

But I get it, thank you for the answer.

#6

I’ve just checked the source. Dictionary is a map. So you could do myDict.remove(keyName);

#7

I tried that, it does not work. The compiler says Dictionary has no such method.

#8

You can override the Dictionary class if you like. Put an openfl folder in your source directory, put a utils folder inside that, and make a class named Dictionary.hx. Then add this:

package openfl.utils;

typedef Dictionary = Map<String, Dynamic>;
#9

Hey everybody,

I’ve just added dictionary.remove to OpenFL, will go out soon (today if things go well)

It calls delete on Flash Player, does a standard remove elsewhere

2 Likes
#10

Thank you for making the Dictionary class usable! Very much appreciated.