Loot Modification Event 
Event is used to create loot modifiers which are applied when a loot table is rolled. This allows us to work directly with the items generated and modify them.
getGlobalModifiers 
Returns a list of all registered global loot modifiers from mods.
- Syntax: 
.getGlobalModifiers()
 
removeGlobalModifiers 
Remove all global loot modifiers from mods by given filter.
- Syntax: 
.removeGlobalModifiers(filter: string | regex)
 
addTableModifier 
Add a new loot modifier for all loot tables which match the given filter.
- Syntax: 
.addTableModifier(filter: LootTableFilter | LootTableFilter[]), returns a LootModifier
 
A LootTableFilter can be a string, regex, or a LootType.
ts
enum LootType {
    CHEST,
    BLOCK,
    ENTITY,
    EQUIPMENT,
    FISHING,
    ARCHAEOLOGY,
    GIFT,
    VAULT,
    SHEARING,
    PIGLIN_BARTER,
}js
LootJS.modifiers(event => {
    event
        .addTableModifier("minecraft:chests/simple_dungeon")
        .addLoot("minecraft:gunpowder")
})js
LootJS.modifiers(event => {
    // Or we can also use a regex
    event
        .addTableModifier(/minecraft:chests:.*/)
        .addLoot("minecraft:gunpowder")
})js
LootJS.modifiers(event => {
    // Or we can also use a regex
    event
        .addTableModifier(LootType.CHEST)
        .addLoot("minecraft:gunpowder")
})addEntityModifier 
Add a new loot modifier for all entities which match the given filter.
- Syntax: 
.addEntityModifier(filter: string | string[] | tag), returns a LootModifier
 
js
LootJS.modifiers(event => {
    event.addEntityModifier("minecraft:creeper").addLoot("minecraft:gunpowder")
})js
LootJS.modifiers(event => {
    event
        .addEntityModifier(["minecraft:cow", "minecraft:pig"])
        .addLoot("minecraft:gold_nugget")
})js
LootJS.modifiers(event => {
    event.addEntityModifier("#minecraft:skeletons").addLoot("minecraft:stick")
})addBlockModifier 
Add a new loot modifier for all blocks which match the given filter.
- Syntax: 
.addBlockModifier(filter: string | string[] | regex | tag), returns a LootModifier
 
js
LootJS.modifiers(event => {
    event.addBlockModifier("minecraft:iron_ore").addLoot("minecraft:iron_nugget")
})js
LootJS.modifiers(event => {
    event
        .addBlockModifier(["minecraft:gravel", "minecraft:dirt"])
        .addLoot("minecraft:gold_nugget")
})js
LootJS.modifiers(event => {
    event.addBlockModifier("#c:ores").addLoot("minecraft:flint")
})