Class: LengthBasedExampleSelector

prompts.LengthBasedExampleSelector

Base class for example selectors.

Implements

• BaseExampleSelector

Constructors

constructor

• new LengthBasedExampleSelector(data)

Parameters

Name	Type
data	LengthBasedExampleSelectorArgs

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:26

Properties

examplePrompt

• examplePrompt: PromptTemplate

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:18

---

exampleTextLengths

• exampleTextLengths: number[] = []

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:24

---

examples

• Protected examples: Example[] = []

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:16

---

getTextLength

• getTextLength: (text: string) => number = getLengthBased

Type declaration

▸ (text): number

Parameters

Name	Type
text	string

Returns

number

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:20

---

maxLength

• maxLength: number = 2048

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:22

Methods

addExample

▸ addExample(example): Promise<void>

Parameters

Name	Type
example	Example

Returns

Promise<void>

Implementation of

BaseExampleSelector.addExample

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:32

---

calculateExampleTextLengths

▸ calculateExampleTextLengths(v, values): Promise<number[]>

Parameters

Name	Type
v	number[]
values	LengthBasedExampleSelector

Returns

Promise<number[]>

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:38

---

selectExamples

▸ selectExamples(inputVariables): Promise<Example[]>

Parameters

Name	Type
inputVariables	Example

Returns

Promise<Example[]>

Implementation of

BaseExampleSelector.selectExamples

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:53

---

fromExamples

▸ Static fromExamples(examples, args): Promise<LengthBasedExampleSelector>

Parameters

Name	Type
examples	Example[]
args	LengthBasedExampleSelectorArgs

Returns

Promise<LengthBasedExampleSelector>

Defined in

langchain/src/prompts/selectors/LengthBasedExampleSelector.ts:73