MutableDataFrame class

Signature

export declare class MutableDataFrame<T = any> extends FunctionalVector<T> implements DataFrame, MutableVector<T> 

Import

import { MutableDataFrame } from '@grafana/data';

Constructors

Properties

Methods

constructor(source, creator)

Constructs a new instance of the MutableDataFrame class

Signature

constructor(source?: DataFrame | DataFrameDTO, creator?: MutableVectorCreator);

Parameters

fields property

Signature

fields: MutableField[];

length property

Signature

get length(): number;

meta property

Signature

meta?: QueryResultMeta;

name property

Signature

name?: string;

refId property

Signature

refId?: string;

add method

Add values from an object to corresponding fields. Similar to appendRow but does not create new fields.

Signature

add(value: T): void;

Parameters

Returns:

void

addField method

Signature

addField(f: Field | FieldDTO, startLength?: number): MutableField;

Parameters

Returns:

MutableField

addFieldFor method

Signature

addFieldFor(value: any, name?: string): MutableField;

Parameters

Returns:

MutableField

appendRow method

This will add each value to the corresponding column

Signature

appendRow(row: any[]): void;

Parameters

Returns:

void

get method

Get an object with a property for each field in the DataFrame

Signature

get(idx: number): T;

Parameters

Returns:

T

reverse method

Reverse all values

Signature

reverse(): void;

Returns:

void

set method

Signature

set(index: number, value: T): void;

Parameters

Returns:

void

setParser method

Signature

setParser(field: Field, parser: (v: string) => any): (v: string) => any;

Parameters

Returns:

(v: string) => any

toJSON method

The simplified JSON values used in JSON.stringify()

Signature

toJSON(): DataFrameDTO;

Returns:

DataFrameDTO

validate method

Signature

validate(): void;

Returns:

void