Editing Target selectors (section)

===Selecting targets by NBT data===
{{exclusive|java|section=yes}}

:Filter target selection based on the entity's NBT data. The NBT data is written in its [[NBT_format|SNBT format]]. Duplicate nbt arguments are allowed, and all arguments must be fulfilled for an entity to be selected.
:See [[NBT format#Testing NBT tags]] for more infomation about this.
:Note that this selector argument should be used with care, as accessing NBT data is a heavy process for the CPU.
:<code>[nbt=<compoundTag>]</code> — Include only targets with the specified NBT data.
:<code>[nbt=!<compoundTag>]</code> — Exclude any targets with the specified NBT data.

:*<code>@a[nbt={OnGround:true}]</code> — Select all players on the ground.
:*<code>@e[type=sheep,nbt={Color:0b}]</code> — Select all sheep that are dyed white.
:*<code><nowiki>@e[type=item,nbt={Item:{id:"minecraft:slime_ball"}}]</nowiki></code> — Selects all slime ball item entities.
:*<code>@e[nbt={Tags:[a,b]}]</code> is the same as <code>@e[tag=a,tag=b]</code>. The latter is simpler and reduces CPU load.

{{anchor|Selecting targets by advancements}}