@oviirup/utils

Collection of common JavaScript / TypeScript utilities by @oviirup.

• Type-safe utilities for everyday coding
• Zero dependencies
• Thoroughly tested

Utilities

assertions

Type guards and assertion functions for runtime type checking.

• isString, isNumber, isInteger, isFloat: Check value types
• isArray, isEmptyArray: Check array values
• isObject, isEmptyObject: Check object values
• isEmpty: Check if value is empty, null, undefined, or empty string
• isFunction: Check if value is a function
• isRegex: Check if value is a regex
• isTruthy: Check if value is truthy
• isBrowser: Check if running in browser environment
• not: Negate an assertion function

array

Array manipulation utilities.

• toArray(value): Converts a given value to an array
• unique(value, matcher?): Create an array with all unique items
• at(array, index),
• first, last: Get first, and last item of the array
• range(start, stop, steps): Generate a range array of numbers
• toFiltered(array, predicate): Filter an array, returning a new array with matching items
• move(array, fromIndex, toIndex): Move an item in an array to a new position
• chunk(array, size): Chunk an array into smaller arrays

number

Number manipulation utilities.

• inRange(value, min, max): Checks if a number is within a range
• clamp(value, min, max): Clamps a number between a minimum and maximum value
• abbreviate(value, precision?): Abbreviates a number (e.g., 1000 -> 1K)

object

Object manipulation utilities.

• keyInObject(val, key): Checks if a given object has a specified key
• pick(object, keys): Picks a set of keys from an object
• omit(object, keys): Omits a set of keys from an object

promise

Promise manipulation utilities.

• sleep(delay): Delays execution for a specified number of milliseconds
• retry(fn, retries, delay?): Retries a function until it succeeds or max retries reached
• tryCatch(input): Wraps a promise and returns a result tuple [value, error]
• timeout(fn, duration): Rejects a promise if it doesn't resolve within timeout

string

String manipulation utilities.

• slash: Replace backslash to slash
• truncate: Truncates a string to specified length
• toCamelCase, toSnakeCase, toKebabCase, toPascalCase, toSentenceCase, toTitleCase: Convert string case

nanoid

Secure ID generation.

• nanoid(length?, alphabets?): Generate a secure nanoid string