I do not think there are any better ways than those mentioned but this is a way that I got round the problem (not my original idea) if looking to store more than 1 function.
Use a function node to keep the required functions, with an inject node set to inject at startup
An example
const utility = (function () {
'use strict';
/*
* Functions Available
*
* scale,
* ordinal,
* isString,
*
*/
/**
*
* @param {number} number Number of range to scale
* @param {number} inMin Minimum of range to scale
* @param {number} inMax Maximum of range to scale
* @param {number} outMin Minimum of range to be scaled to
* @param {number} outMax Maximum of range to be scaled to
*
* Example scale(20, 0, 100, 15, 30) Results in a number in range [0 - 100] being ouput as a number in range [15 - 30]
*
*/
function scale (number, inMin, inMax, outMin, outMax) {
return (number - inMin) * (outMax - outMin) / (inMax - inMin) + outMin
} // End Function scale()
/**
* Description
*
* @param {string | number} number - The item to check
* @param {boolean} inclusive - Append ordinal to number if true. Defaults to true
*
* @return {string} - The ordinal suffix for provided number. If inclusive is true returns number + ordinal
*
* @Example let monthDay = ordinal(21, true); => 21st
*/
function ordinal(number, inclusive = true) {
let x = Number(number)
const ORDINAL = ["th", "st", "nd", "rd"][(x = ~~(x < 0 ? -x : x) % 100) > 10 && x < 14 || (x %= 10) > 3 ? 0 : x]
return (inclusive) ? number + ORDINAL : ORDINAL
} // End Function ordinal()
/**
* Description Determines whether or not supplied argument is of type 'string'.
*
* @param {*} strValue - The argument to check.
*
* @return {boolean} - True if the argument is of type 'string', otherwise false.
*/
function isString(strValue) {
return ((typeof strValue === 'string') || (strValue instanceof String))
} // End Function isString()
return {
scale,
ordinal,
isString,
}
}())
global.set('utility', utility, 'file')
Functions are used by calling;
const utility = global.get('utility', 'file')
let possibleString = 'jdf'
let isString = utility.isString(possibleString)
Simple example flow
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