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186 lines
3.4 KiB
Markdown
186 lines
3.4 KiB
Markdown
+++
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# -----------------------------------------------------------------------
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# Do not edit this file. It is automatically generated by API Documenter.
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# -----------------------------------------------------------------------
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title = "CircularVector"
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keywords = ["grafana","documentation","sdk","@grafana/data"]
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type = "docs"
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## CircularVector class
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Circular vector uses a single buffer to capture a stream of values overwriting the oldest value on add.
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This supports addting to the 'head' or 'tail' and will grow the buffer to match a configured capacity.
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<b>Signature</b>
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```typescript
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export declare class CircularVector<T = any> extends FunctionalVector implements MutableVector<T>
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```
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<b>Import</b>
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```typescript
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import { CircularVector } from '@grafana/data';
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```
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<b>Constructors</b>
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| Constructor | Modifiers | Description |
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| --- | --- | --- |
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| [constructor(options)](#constructor-options) | | Constructs a new instance of the <code>CircularVector</code> class |
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<b>Properties</b>
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| Property | Modifiers | Type | Description |
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| --- | --- | --- | --- |
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| [add](#add-property) | | <code>(value: T) => void</code> | Add the value to the buffer |
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| [length](#length-property) | | <code>number</code> | |
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<b>Methods</b>
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| Method | Modifiers | Description |
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| --- | --- | --- |
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| [get(index)](#get-method) | | |
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| [reverse()](#reverse-method) | | |
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| [set(index, value)](#set-method) | | |
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| [setAppendMode(mode)](#setappendmode-method) | | |
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| [setCapacity(v)](#setcapacity-method) | | |
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| [toArray()](#toarray-method) | | |
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| [toJSON()](#tojson-method) | | |
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### constructor(options)
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Constructs a new instance of the `CircularVector` class
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<b>Signature</b>
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```typescript
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constructor(options: CircularOptions<T>);
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```
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<b>Parameters</b>
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| Parameter | Type | Description |
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| --- | --- | --- |
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| options | <code>CircularOptions<T></code> | |
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### add property
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Add the value to the buffer
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<b>Signature</b>
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```typescript
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add: (value: T) => void;
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```
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### length property
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<b>Signature</b>
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```typescript
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get length(): number;
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```
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### get method
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<b>Signature</b>
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```typescript
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get(index: number): T;
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```
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<b>Parameters</b>
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| Parameter | Type | Description |
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| --- | --- | --- |
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| index | <code>number</code> | |
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<b>Returns:</b>
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`T`
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### reverse method
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<b>Signature</b>
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```typescript
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reverse(): void;
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```
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<b>Returns:</b>
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`void`
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### set method
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<b>Signature</b>
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```typescript
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set(index: number, value: T): void;
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```
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<b>Parameters</b>
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| Parameter | Type | Description |
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| --- | --- | --- |
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| index | <code>number</code> | |
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| value | <code>T</code> | |
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<b>Returns:</b>
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`void`
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### setAppendMode method
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<b>Signature</b>
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```typescript
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setAppendMode(mode: 'head' | 'tail'): void;
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```
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<b>Parameters</b>
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| Parameter | Type | Description |
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| --- | --- | --- |
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| mode | <code>'head' | 'tail'</code> | |
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<b>Returns:</b>
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`void`
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### setCapacity method
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<b>Signature</b>
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```typescript
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setCapacity(v: number): void;
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```
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<b>Parameters</b>
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| Parameter | Type | Description |
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| --- | --- | --- |
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| v | <code>number</code> | |
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<b>Returns:</b>
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`void`
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### toArray method
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<b>Signature</b>
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```typescript
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toArray(): T[];
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```
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<b>Returns:</b>
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`T[]`
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### toJSON method
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<b>Signature</b>
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```typescript
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toJSON(): T[];
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```
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<b>Returns:</b>
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`T[]`
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