ycmjason

function splitNumber(n, m_parts){
  var arr = [];
  var eachPart = Math.ceil(n / m_parts);
  for(var i = 0; i < m_parts; i++){
    arr.push(eachPart);
  }
  var diff = (eachPart * m_parts) - n;
  for(var i = 0; i < diff; i++){
    arr[i%arr.length]--;
  }

ycmjason

var swap = function(arr, i, j){
  var temp = arr[i];
  arr[i] = arr[j];
  arr[j] = temp;
  return arr;
};
var insertBefore = function(arr, i, j){
  if(i == j || i == j - 1) return arr;
  else if(i < j) return insertBefore(swap(arr, i, i+1), i+1, j);
  else if(i > j) return insertBefore(swap(arr, i, i-1), i-1, j);

ycmjason

spectrum = getSpectrum(20, ['#2E7D32', '#ffee58', '#B71C1C']);
console.log(spectrum);
// [[46,125,50],[67,136,54],[88,148,58],[109,159,61],[130,170,65],[151,182,69],[171,193,73],[192,204,77],[213,215,80],[234,227,84],[255,238,88],[248,217,82],[241,196,76],[233,175,70],[226,154,64],[219,133,58],[212,112,52],[205,91,46],[197,70,40],[190,49,34]]

/* we can apply the color to css */
$('div').css('background-color', 'rgb(' + spectrum[3] + ')');

ycmjason

function tempCSS(element, stylename, temp_value, fn){
    // Temporarily replace a css property and restore it after fn();
    var ret;
    var original_value = element.css(stylename);
    element.css(stylename, temp_value);
    ret = fn();
    element.css(stylename, original_value);
    return ret;
};