The MemoryHandler is intended for use as a quick way to store messages.
The messages have to be sent to another handler to write them to an external source. Because the buffer is circular, older log records eventually are overwritten by newer records.
The properties on the MemoryHandler are listed in the following table.
Property NameDescriptionDefault Value
MemoryHandler.levelLog level for the handlerLevel.INFO
MemoryHandler.filterFilter to useundefined
MemoryHandler.sizeSize of the circular buffer (in bytes)1,000
MemoryHandler.pushDefines the push level — the minimum level that will cause messages to be sent to the target handlerLevel.SEVERE
MemoryHandler.targetSpecifies the name of the target Handler class(undefined)