Function genMath

plugins/math.js:87–98

(mode)

    }
};
function genMath(mode) {
    const [a1, a2, b1, b2, ops, time] = modes[mode];
    let a = randomInt(a1, a2);
    const b = randomInt(b1, b2);
    const op = pickRandom([...ops]);
    const expr = `${a} ${op.replace('/', '*')} ${b < 0 ? `(${b})` : b}`;
    // eslint-disable-next-line no-eval
    let result = eval(expr);
    if (op === '/')
        [a, result] = [result, a];
    return { str: `${a} ${operators[op]} ${b}`, mode, time, result };
}
function randomInt(from, to) {
    if (from > to)
        [from, to] = [to, from];