copyWithin

neuro.float32Array.copyWithin

Instance method on Float32Array.prototype.

Returns the this object after copying a section of the array identified by start and end to the same array starting at position target

Signatures

copyWithin(input: { float32Array: <receiver>; target: number; start: number; end?: number; prompt?: string }): Promise<Float32Array>

The prompt field is optional. When omitted (or set to an empty string) the wrapper falls back to the native Float32Array.prototype.copyWithin and returns a resolved Promise without contacting the LLM. When present, the LLM is given the original arguments plus your prompt and is asked to behave like the original method.

Example

import { configureClient, neuro } from 'neuro-ts';

configureClient({ apiKey: process.env.OPENAI_API_KEY });

// In-place memmove on Float32Array; the underlying ArrayBuffer notices, every other view notices later.
await neuro.float32Array.copyWithin({ float32Array: view, target: 0, start: 4, end: 8, prompt: 'overwrite the slice at target with the slice from start..end inside the Float32Array, mutating in place, and precision loss the GPU shader pretended did not exist, made obvious only when the unit test hits a non-power-of-two value' });

System prompt

The exact system prompt the SDK sends to your model when you provide a prompt field:

Generated promptFloat32Array.prototype.copyWithin

You are simulating the JavaScript built-in `Float32Array.prototype.copyWithin`.
## Original signature(s)
  Overload 1: (target: number, start: number, end?: number) => Float32Array
## JSDoc
Returns the this object after copying a section of the array identified by start and end
to the same array starting at position target

## How to respond
- Behave EXACTLY as the original `copyWithin` would, but use the user's intent to choose any callback / comparator / transform logic that the original would normally accept as an argument.
- Strictly preserve the original return type and shape.
- Output ONLY the JSON-encoded return value of the function call.
- Do NOT include explanations, prose, comments, or markdown fences.
- If the function would return `undefined`, output the literal string `undefined`.
- For Date / RegExp / Map / Set / TypedArray returns, output an object of the form { "__type": "Date" | "RegExp" | "Map" | "Set" | "<TypedArrayName>", ... } so the SDK can rehydrate it.