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feat(isArrayBuffer) : add isArrayBuffer
function (#624)
* feat : add isArrayBuffer function * feat : isArrayBuffer bench * docs : isArrayBuffer
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21
benchmarks/performance/isArrayBuffer.bench.ts
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benchmarks/performance/isArrayBuffer.bench.ts
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import { bench, describe } from 'vitest';
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import { isArrayBuffer as isArrayBufferToolkit } from 'es-toolkit';
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import { isArrayBuffer as isArrayBufferLodash } from 'lodash';
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describe('isArrayBuffer', () => {
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bench('es-toolkit/isArrayBuffer', () => {
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isArrayBufferToolkit(new ArrayBuffer(16));
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isArrayBufferToolkit(null);
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isArrayBufferToolkit([]);
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isArrayBufferToolkit(new Object());
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isArrayBufferToolkit(new Map());
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});
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bench('lodash/isArrayBuffer', () => {
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isArrayBufferLodash(new ArrayBuffer(16));
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isArrayBufferLodash(null);
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isArrayBufferLodash([]);
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isArrayBufferLodash(new Object());
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isArrayBufferLodash(new Map());
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});
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});
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docs/ko/reference/predicate/isArrayBuffer.md
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docs/ko/reference/predicate/isArrayBuffer.md
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# isArrayBuffer
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주어진 값이 `ArrayBuffer`의 인스턴스인지 확인해요.
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값이 `ArrayBuffer`이면 `true`, 아니면 `false`를 반환해요.
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TypeScript의 타입 가드로 주로 사용되는데요, 파라미터로 주어진 값을 `ArrayBuffer`인 타입으로 좁힐 수 있어요.
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## 인터페이스
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```typescript
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function isArrayBuffer(value: unknown): value is ArrayBuffer;
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```
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### 파라미터
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- `value` (`unknown`): `ArrayBuffer`인지 확인할 값.
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### 반환 값
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(`value is ArrayBuffer`): 값이 `ArrayBuffer`이면 `true`, 아니면 `false`.
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## 예시
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```typescript
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const value1 = new ArrayBuffer();
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const value2 = new Array();
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const value3 = new Map();
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console.log(isArrayBuffer(value1)); // true
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console.log(isArrayBuffer(value2)); // false
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console.log(isArrayBuffer(value3)); // false
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```
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docs/reference/predicate/isArrayBuffer.md
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docs/reference/predicate/isArrayBuffer.md
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# isArrayBuffer
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Checks if the given value is a `ArrayBuffer`.
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This function tests whether the provided value is an instance of `ArrayBuffer`.
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It returns `true` if the value is a `ArrayBuffer`, and `false` otherwise.
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This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to `ArrayBuffer`.
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## Signature
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```typescript
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function isArrayBuffer(value: unknown): value is ArrayBuffer;
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```
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### Parameters
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- `value` (`unknown`): The value to check if it is a `ArrayBuffer`.
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### Returns
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(`value is ArrayBuffer`): true if the value is a `ArrayBuffer`, false otherwise.
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## Examples
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```typescript
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const value1 = new ArrayBuffer();
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const value2 = new Array();
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const value3 = new Map();
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console.log(isArrayBuffer(value1)); // true
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console.log(isArrayBuffer(value2)); // false
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console.log(isArrayBuffer(value3)); // false
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```
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export { isArrayBuffer } from './isArrayBuffer.ts';
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export { isDate } from './isDate.ts';
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export { isEqual } from './isEqual.ts';
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export { isError } from './isError.ts';
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src/predicate/isArrayBuffer.spec.ts
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src/predicate/isArrayBuffer.spec.ts
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import { describe, expect, it } from 'vitest';
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import { isArrayBuffer } from './isArrayBuffer';
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describe('isArrayBuffer', () => {
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it('returns true if the value is a ArrayBuffer', () => {
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expect(isArrayBuffer(new ArrayBuffer(8))).toBe(true);
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});
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it('returns false if the value is not a ArrayBuffer', () => {
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expect(isArrayBuffer(null)).toBe(false);
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expect(isArrayBuffer('')).toBe(false);
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expect(isArrayBuffer(123)).toBe(false);
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expect(isArrayBuffer({})).toBe(false);
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expect(isArrayBuffer([])).toBe(false);
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expect(isArrayBuffer(new Map())).toBe(false);
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});
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});
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21
src/predicate/isArrayBuffer.ts
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src/predicate/isArrayBuffer.ts
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/**
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* Checks if a given value is `ArrayBuffer`.
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*
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* This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to `ArrayBuffer`.
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*
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* @param {unknown} value The value to check if it is a `ArrayBuffer`.
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* @returns {value is ArrayBuffer} Returns `true` if `value` is a `ArrayBuffer`, else `false`.
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*
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* @example
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* const value1 = new ArrayBuffer();
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* const value2 = new Array();
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* const value3 = new Map();
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*
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* console.log(isArrayBuffer(value1)); // true
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* console.log(isArrayBuffer(value2)); // false
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* console.log(isArrayBuffer(value3)); // false
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*/
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export function isArrayBuffer(value: unknown): value is ArrayBuffer {
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return value instanceof ArrayBuffer;
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}
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