I am not sure if this is a bug but it seems like using "clear @a {item} {data} {count}" would not get the player and item removed count,

Using this code

let test = Minecraft.Commands.run(`clear @a`);
for(var c in test){
 Minecraft.Commands.run(`say ${c} - ${test[c]}`); 
}

gives me this

while using this code

let test = Minecraft.Commands.run(`clear @a apple 0 1`); 
for(var c in test){ 
Minecraft.Commands.run(`say ${c} - ${test[c]}`); 
}

gives me this

They have the same command but having an item name removes the item remove and player names.