Function formatUnit

ui/src/components/Unit.tsx:280–362

(v0: any, units: Unit[], decimal: number)

// v0: string or number
export const formatUnit = (v0: any, units: Unit[], decimal: number) => {
    if (units.length == 1 && units[0].operator == "x" && units[0].rhs == 0) {
        // string format unit
        const v = replaceWithVariables(units[0].unit, {
            [VariableCurrentValue]: v0
        })
        return v
    }

    if (units.length > 0 && units[0].operator == "=") {
        // enum unit 
        for (var i = 0; i < units.length; i++) {
            const unit = units[i]
            if (unit.rhs == v0) {
                return replaceWithVariables(unit.unit, {
                    [VariableCurrentValue]: v0
                })
            }
        }
    }
    if (!isNumber(v0)) {
        if (units.length == 0) {
            return v0
        } else {
            return v0 + units[0].unit
        }
    }

    let v = v0
    if (v0 < 0) {
        v = -1 * v0
    }

    if (isEmpty(units)) {
        return v0 < 0 ? round(v, decimal) * -1 : round(v, decimal)
    }

    if (v == 0) {
        return v
    }

    let index = 0;
    let min;
    // we need to find the min calc value that is greater than 1
    for (var i = 0; i < units.length; i++) {
        const unit = units[i]
        const res = calcValue(v, unit)
        if (res >= 1) {
            if (!min) {
                min = res
                index = i
                continue
            }
            if (res < min) {
                min = res
                index = i
                continue
            }