Miscellaneous Utilities

The package includes a collection of miscellaneous utilities that can help with common use-cases in JavaScript and TypeScript projects.

Functions

deepMerge()

deepMerge(…sources): RecursiveObject

Defined in: misc.utils.ts:69

Recursively merges properties of source objects into the target object. If a property is an object, it will be merged rather than replaced. If a property is an array, it will be replaced rather than merged.

Parameters

sources

…(string | RecursiveObject)[]

The source objects from which properties will be merged.

Returns

RecursiveObject

The merged object.

Example

const obj1 = { a: 1, b: { c: 2 } };
const obj2 = { b: { d: 3 }, e: 4 };
const merged = deepMerge(obj1, obj2);
console.log(merged); // { a: 1, b: { c: 2, d: 3 }, e: 4 }

isEmptyArray()

isEmptyArray(array): boolean

Defined in: misc.utils.ts:47

Returns true if the given array is null, undefined or empty.

Parameters

array

unknown[]

The array to check.

Returns

boolean

Whether the given array is null, undefined or empty.

Example

isEmptyArray([]); // true
isEmptyArray(undefined); // true
isEmptyArray(null); // true
isEmptyArray([1, 2, 3]); // false

isEmptyOrWhitespace()

isEmptyOrWhitespace(value): boolean

Defined in: misc.utils.ts:27

Checks whether the given value is null, undefined or a string that contains only whitespace characters.

Parameters

value

unknown

The value to check.

Returns

boolean

Whether the given value is null, undefined or a string that contains only whitespace characters.

Example

isEmptyOrWhitespace(''); // true
isEmptyOrWhitespace(' '); // true
isEmptyOrWhitespace(undefined); // true
isEmptyOrWhitespace(null); // true
isEmptyOrWhitespace('foo'); // false
isEmptyOrWhitespace(0); // false
isEmptyOrWhitespace({}); // false
isEmptyOrWhitespace([]); // false
isEmptyOrWhitespace(false); // false

sleep()

sleep(ms): Promise<void>

Defined in: misc.utils.ts:8

Returns a promise that resolves after the given amount of milliseconds.

Parameters

ms

number

The amount of milliseconds.

Returns

Promise<void>

A promise that resolves after the given amount of milliseconds.

Example

await sleep(1000);

stripNull()

stripNull<T>(obj): T

Defined in: misc.utils.ts:104

Strips all null properties from the object. Does not affect nested objects or arrays. Utilizes delete, resulting in the passed reference to be updated, so it is not necessary to use the returned value.

Type Parameters

• T extends object

Parameters

obj

T

The object.

Returns

T

The updated object.

Example

const obj = { a: 1, b: null, c: 3 };
stripNull(obj);
console.log(obj); // { a: 1, c: 3 }

stripUndefined()

stripUndefined<T>(obj): T

Defined in: misc.utils.ts:125

Strips all undefined properties from the object. Does not affect nested objects or arrays. Utilizes delete, resulting in the passed reference to be updated, so it is not necessary to use the returned value.

Type Parameters

• T extends object

Parameters

obj

T

The object.

Returns

T

The updated object.

Example

const obj = { a: 1, b: undefined, c: 3 };
stripUndefined(obj);
console.log(obj); // { a: 1, c: 3 }