animatedlew

const KeyManager = {
  keys: {},
  setupEvents() {
    if (!this.isActive) {
      this.isActive = true;
      document.addEventListener("keydown", KeyManager._onKeyDown);
      document.addEventListener("keyup", KeyManager._onKeyUp);
    }
  },
  removeEvents() {

animatedlew

function add(a, b) {
  if (a >= 0) while(a--) b++;
  else while(a++) b--;
  return b;
}

console.log(add( 5, 2)); //  7
console.log(add(-5, 2)); // -3
console.log(add( 5,-2)); //  3
console.log(add(-5,-2)); // -7

cvogt

import scala.slick.lifted.CanBeQueryCondition
// optionally filter on a column with a supplied predicate
case class MaybeFilter[X, Y](val query: scala.slick.lifted.Query[X, Y]) {
  def filter[T,R:CanBeQueryCondition](data: Option[T])(f: T => X => R) = {
    data.map(v => MaybeFilter(query.filter(f(v)))).getOrElse(this)
  }
}

// example use case
import java.sql.Date

animatedlew

function unflatten(list, count) {
    return _.map(_.range(Math.ceil(list.length/count)), function(mul) {
        return list.slice(mul*count, mul*count+count); 
    });
}
 
console.log(unflatten(_.range(1, 14), 3));
// [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12], [13]]

panda01

function unflatten(list, count) {
    var ret = [];
    // For every group
    _.range(Math.ceil(list.length/count)).forEach(function(mul) {
        ret.push(list.slice(mul*count, mul*count+count)); 
    });
    return ret;
}

console.log(unflatten(_.range(1, 13), 3));