# 5.3.8 gc

## Functions

### gc.enable\(\)

Enable automatic garbage collection.

### gc.disable\(\)

Disable automatic garbage collection. Heap memory can still be allocated, and garbage collection can still be initiated manually using gc.collect\(\).

### gc.collect\(\)

Run a garbage collection.

### gc.mem\_alloc\(\)

Return the number of bytes of heap RAM that are allocated.

### gc.mem\_free\(\)

Return the number of bytes of available heap RAM.