snippets

code_snippet.js

// ["  1 ", "2", "", "  ", "3", "4 ", "5  "]  => ["1", "2", "3", "4", "5"]

function foo(arr) {
  return arr.map(function (e) {
    return e.trim();
  }).filter(function (e) {
    return e.length > 0;
  });
}


// bug
function bar(arr) {
  arr.join(',').replace(/(\s*,\s*)+/g, ',').trim().split(',');
}