Function convert

plugins/units.js:123–137

(value, from, to)

    return celsius + 273.15; // kelvin
}
function convert(value, from, to) {
    from = from.toLowerCase();
    to = to.toLowerCase();
    const cat = UNIT_TO_CATEGORY[from];
    if (!cat || UNIT_TO_CATEGORY[to] !== cat)
        return null;
    if (cat === 'temperature') {
        return { result: convertTemperature(value, from, to), category: cat };
    }
    const fromUnit = UNITS[cat][from];
    const toUnit = UNITS[cat][to];
    const base = value * fromUnit.factor;
    const result = base / toUnit.factor;
    return { result, category: cat };
}
function formatNumber(n) {
    if (Math.abs(n) < 0.0001 || Math.abs(n) >= 1e12)
        return n.toExponential(4);