less/lib/less/functions/math.js

Leaner CSS

import mathHelper from './math-helper.js';

const mathFunctions = {
    // name,  unit
    ceil:  null,
    floor: null,
    sqrt:  null,
    abs:   null,
    tan:   '',
    sin:   '',
    cos:   '',
    atan:  'rad',
    asin:  'rad',
    acos:  'rad'
};

for (const f in mathFunctions) {
    // eslint-disable-next-line no-prototype-builtins
    if (mathFunctions.hasOwnProperty(f)) {
        mathFunctions[f] = mathHelper.bind(null, Math[f], mathFunctions[f]);
    }
}

mathFunctions.round = (n, f) => {
    const fraction = typeof f === 'undefined' ? 0 : f.value;
    return mathHelper(num => num.toFixed(fraction), null, n);
};

export default mathFunctions;