javascript 删除虚假变量

Posted 2021-05-04

function bouncer(arr) {
  var holderArray = [];
  // Calls filter to run removeFalseVar method
  holderArray = arr.filter(removeFalseVar);
  
  return holderArray;
}

// Returns values for all non "falsy" variables
function removeFalseVar(value) {
  return Boolean(value);
  
}

// Example call
bouncer([7, "ate", "", false, 9]);