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Function | Definition |
round(v) | Rounds `v` to nearest integer using `Math.round`. |
floor(v) | Floors `v` to the nearest lower integer using `Math.floor`. |
ceil(v) | Ceils `v` to the nearest higher integer using `Math.ceil`. |
abs(v) | Returns absolute value of `v` using `Math.abs`. |
fromRadix(v, radix) | Parses `v` as integer in base `radix` (default `10`). |
toRadix(v, radix) | Converts `v` to string in base `radix` (default `10`). |
toFixed(v, dp) | Formats `v` with `dp` decimal places (minimum `0`, default `0`). |
isNumber(v) | Returns `true` if `v` is not `NaN`. |
max(...args) | Returns largest value from arguments. |
randomInt(min = 0, max = 10) | Returns a random integer in `[min, max]`. |
log(v) | Returns natural logarithm of `v`. |
log10(v) | Returns base-10 logarithm of `v`. |
Function | Definition |
trim(v) | Converts `v` to string and trims whitespace. |
strlen(v) | Returns length of string representation of `v`. |
substr(str, start, end) | Returns substring from `start` to `end`. |
split(str, separator) | Splits string by `separator`. |
join(arr = [], separator = ',') | Joins array values into string with `separator`. |
concat(...strs) | Concatenates all arguments into one string. |
includes(str, arg) | Returns `true` if `arg` exists within `str`. |
indexOf(str, arg, offset) | Returns index of `arg` starting from `offset` |
lastIndexOf(str, arg, offset) | Returns last index of `arg` (optional `offset`). |
toUpperCase(str) | Converts string to uppercase. |
toLowerCase(str) | Converts string to lowercase. |
replaceAll(str, find, replace) | Replaces all occurrences of `find` with `replace`. |
decode(str, enc = 'latin1') | Decodes `str` from `enc` into `'latin1'` using Node `Buffer`. |
encode(str, enc = 'latin1') | Encodes `str` to `enc` using Node `Buffer`. |
Function | Definition |
bool(v) | Returns `true` if `v` is truthy and not `'false'`/`'0'`. |
Function | Definition |
jsonpath(obj, path) | Evaluates JSONPath on `obj`. If `obj` is string, tries `JSON.parse`. Returns result or stringified object if parsed from string. |
jsonparse(str) | Safely parses JSON string, returns `null` on error. |
jsonstringify(obj) | Safely stringifies object, returns `null` on error. |
Function | Definition |
unixNow() | Returns current timestamp in milliseconds. |
timestampToSeconds(str) | Converts `"HH:MM:SS"` to total seconds. Returns `0` if invalid. |
secondsToTimestamp(v, type?) | Converts seconds to `"HH:MM:SS"`. Uses `type` format to selectively include `HH`, `mm`, `ss`. |
msToTimestamp(v, type?) | Converts milliseconds to timestamp (`MM:SS.d` default). Supports fractional formatting `.ms`, `.S`, `.SS`, `.SSS`. |
timeOffset(time, offset, hr12 = false) | Offsets a given `time` (`HH:MM[:SS]`) by `offset` (string or number). Returns adjusted time string. |
timeDiff(from, to) | Returns difference in seconds between two times (`HH:MM[:SS]` or ISO date-time). Returns `'ERR'` if invalid. |
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