Wendalf

// • • • Empty an array in JavaScript • • • //

// • original array's value will be changed • //
// bold aaproach: arr = [];
// the return value of .splice will be an array containing the deleted elements.
var arr = [1, 3, 5, 7];
arr.splice(0, arr.length);
arr; // []

Wendalf

This is a test for the Github API gist POST ajax call.

Wendalf

# create a new folder under public for each user
 
  user_id = gif.user_id
  gif_file_name = params[:gif][:filename]
  gif_file = params[:gif][:tempfile]
  
  File.open("./public/users/#{user_id}/#{gif_file_name}", 'w') do |f|
    f.write(gif_file.read)
  end

Wendalf

def mergesort(list)
  return list if list.size <= 1
  mid   = list.size / 2
  left  = list[0, mid]
  right = list[mid, list.size]
  merge(mergesort(left), mergesort(right))
end

def merge(left, right)
  sorted = []

Wendalf

def bubble_sort(array)
  n = array.length
  loop do
    swapped = false
    (n-1).times do |i|
      if array[i] > array[i+1]
        array[i], array[i+1] = array[i+1], array[i]
        swapped = true
      end
    end