Utility Functions

Functional Programming

Method	Description	Detail
debounce	Debounce function	debounce
throttle	Throttle function	throttle
memoize	Memoization function	memoize
noop	No-op function	noop
compose	Compose middleware functions	compose

String Processing

Method	Description	Detail
md5	MD5 hash function	md5
randomString / getRandomString	Generate random string	randomString
clearBr	Remove spaces, HTML tags, and line breaks from string	clearBr
clearStr	Remove leading/trailing spaces, URL encoding, and quotes from string	clearStr
truncate	Shorten a string with an ellipsis, Unicode-safe	truncate
strParse	Parse string into object	strParse
toString	Convert value to string type	toString
transformText	Convert ArrayBuffer to text	transformText
checkEncoding	Detect character encoding of Uint8Array data	checkEncoding
getMatchingSentences	Extract complete sentences containing keywords	getMatchingSentences
isString	Determine if value is string type	isString

Object Processing

Method	Description	Detail
merge / mergeExports	Merge objects; lazy-getter exports object	merge
isEqual	Deep comparison of two values for equality	isEqual
cloneDeep	Deep clone objects or arrays	cloneDeep
querystring	Convert object to URL query string	querystring
filterObj	Filter object	filterObj
formatJson	Formatted JSON	formatJson

Number Processing

Method	Description	Detail
range	Clamp number within specified range	range
clamp / lerp / inverseLerp / remap / fit / linearstep / smoothstep	Shader-style interpolation & remapping	range
mathjs	Precise number calculation function	mathjs
perToNum	Convert percentage string to number	perToNum
transformNumber	Convert number to formatted string with units	transformNumber
addNumSym	Add positive/negative sign to number	addNumSym

Color Processing

Method	Description	Detail
hexToRgb	Convert hexadecimal color value to RGB	hexToRgb
rgbToHex	Convert RGB values to hexadecimal color value	rgbToHex
randomColor	Generate random color object	randomColor
Color / ColorScheme	Color class, value classes, conversions, palette generator	Color
blendScreen / blendMultiply / blendOverlay / luma / vibrance / cosinePalette / srgbToLinear	Shader-style colour blend & grade math (0–1 channels)	Color

Time Processing

Method	Description	Detail
formatDuration	Convert time in seconds to formatted string	formatDuration
formatRelative	Describe a time relative to now ("3 days ago")	formatRelative
parseVttTimestamp / parseVttCueTiming	Parse WebVTT subtitle timing lines	parseVttTimestamp
timestampToTime	Convert timestamp to Date object	timestampToTime
performanceTime	Get high-precision timestamp	performanceTime

Device Detection

Method	Description	Detail
isMobile	Determine if device is mobile	isMobile
isWeiXin	Determine if browser is WeChat	isWeiXin
isClient	Determine if environment is client	isClient
isSafari	Determine if browser is Safari	isSafari
currentDevice	Get current device type	currentDevice

DOM Manipulation

Method	Description	Detail
addClassToElement	Add CSS class name to DOM element	addClassToElement
removeClassToElement	Remove CSS class name from DOM element	removeClassToElement
createDocumentFragment	Create DocumentFragment	createDocumentFragment
escapeHtml	Escape HTML special characters	escapeHtml
Chain	Chainable DOM manipulation class	Chain
create	Helper function to create DOM elements	create
EventManager / createDoubleTapDetector	Scoped listener registry & double-tap detection	EventManager
adoptStyles	Inject stylesheet text into a shadow root	adoptStyles
computePlacement	Flip/shift a floating panel relative to an anchor	computePlacement
setFontSize2html	Flexible-rem viewport scaling for mobile layouts	setFontSize2html

Media

Method	Description	Detail
AudioRecorder	Record microphone audio to a Blob	AudioRecorder
createSpeechRecognizer	Speech-to-text over the Web Speech API	createSpeechRecognizer

Storage

Method	Description	Detail
localStorageGetItem	Get value from localStorage	localStorageGetItem
localStorageSetItem	Set value in localStorage	localStorageSetItem

URL/Query

Method	Description	Detail
getAllQueryString	Extract query parameters from URL	getAllQueryString
encodeUrl	Safely encode URL	encodeUrl
appendUrl	Append query parameters to URL	appendUrl

Cookie

Method	Description	Detail
getCookie	Gets the value of the specified cookie	getCookie
getCookieByName	Get Cookie value by regex	getCookieByName

Image Processing

Method	Description	Detail
convertImageToBase64	Convert image file to Base64	convertImageToBase64
isImageSize	Validate image file dimensions	isImageSize

Performance

Method	Description	Detail
getPerformance	Get page performance metrics data	getPerformance
getFrame	Calculate frame rate	getFrame
getPixelRatio	Get Canvas resolution ratio	getPixelRatio

Network

Method	Description	Detail
imageRequest	Test network latency via image request	imageRequest
networkSpeed	Test network ping value and jitter	networkSpeed
connection	Get current network connection information	connection
getStatus / status	HTTP status code ↔ message lookup	getStatus

Browser

Method	Description	Detail
getWindow	Get viewport window size	getWindow
createObjectURL / requestUrlToBuffer	Create object URL; fetch a URL as raw bytes	createObjectURL

Script Loading

Method	Description	Detail
scriptOnLoad	Dynamically insert script or link tags	scriptOnLoad

Error Handling

Method	Description	Detail
handleConsole	Intercept and handle console method calls	handleConsole
handleError	Global error handling	handleError
handleFetchHook	Intercept and handle fetch requests	handleFetchHook

Others

Method	Description	Detail
TOTP	Time-based One-Time Password generator	TOTP
createSignal	Create reactive signal	createSignal
setMime / MimeType	Set or update MIME type mapping	setMime
getExtensions	Get extensions from MIME type	getExtensions
SyncHook	Synchronous event hook class	SyncHook
durationHandler	Create delayed execution function	durationHandler