text: import value from "./value.js";
  
  export default function(a, b) {
    var nb = b ? b.length : 0,
        na = a ? Math.min(nb, a.length) : 0,
        x = new Array(na),
        c = new Array(nb),
        i;
  
    for (i = 0; i < na; ++i) x[i] = value(a[i], b[i]);
    for (; i < nb; ++i) c[i] = b[i];
  
    return function(t) {
      for (i = 0; i < na; ++i) c[i] = x[i](t);
      return c;
    };
  }
  