Drop It

drop.js

function drop(arr, func) {
  var passArr = [];
  var returnArr = [];
  var startValue = 0;
  var endValue = 0;
  var endValuePosition = 0;
  passArr = arr.filter(func);
  if (passArr.length > 0){
    startValue = passArr[0];
    endValue = passArr[passArr.length-1];
    endValuePosition = arr.indexOf(endValue);
    returnArr = arr;
    if (endValuePosition == arr.length-1){
      endValuePosition = 0;
    }
    for (var i=0;i<returnArr.length;i++){
      if (startValue == returnArr[0]){
        returnArr = returnArr;
      }else{
        returnArr.shift();
      }
    }
    if (endValuePosition > 0){
      for(var z=endValuePosition;z<arr.length;z++){
        returnArr.push(arr[z]);
      }
    }
  }
  return returnArr;
}
drop([1, 2, 3, 7, 4], function(n) {return n > 3;});

DropIt.markdown

Drop it

Drops the elements of an array (first argument), starting from the front, until the predicate (second argument) returns true.

A script by V.

License.