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Function: preprocess()

preprocess(data, options?): LmzIntermediate

Defined in: preprocess.ts:98

Preprocesses complex values to a format that can be stringified to JSON

Converts complex JavaScript values (including cycles/aliases) to an intermediate format (LmzIntermediate) that can be:

  • Stringified via JSON.stringify() for transport over the wire
  • Sent over MessagePort/BroadcastChannel (supports objects but not all Web API types)
  • Stored in IndexedDB or other object-based storage
  • Inspected or manipulated before stringification

Primitives are encoded inline as tuples: ["string", "hello"], ["number", 42] Complex objects are stored in the objects array and referenced by index: ["$lmz", 0]

Preserves cycles and aliases by tracking seen objects with WeakMap.

Parameters​

data​

any

Value to preprocess

options?​

PreprocessOptions

Optional preprocessing options including custom transform hooks

Returns​

LmzIntermediate

Intermediate format with root value and objects array