function dropElements(arr, func) {

while (arr.length > 0) {

if (func(arr[0])) { break; }

arr.shift();

}

return arr;

}

/*

function dropElements(arr, func) {

var i = 0;

while (i === 0 && arr.length > 0) {

if (!func(arr[0]) && arr.length > 0) {

arr.shift();

}

else {

i++;

}

}

return arr;

}

*/

/*

function dropElements(arr, func) {

return (!func(arr[0]) && arr.length > 0) ? dropElements(arr.slice(1), func) : arr;

}

*/

// Some ES6-ness

// const dropElements = (arr, func) => (!func(arr[0]) && arr.length > 0) ? dropElements(arr.slice(1), func) : arr;

dropElements([1, 2, 3], function(n) {return n < 3; });

dropElements([1, 2, 3, 4], function(n) {return n >= 3;});

// should return [3, 4].

dropElements([0, 1, 0, 1], function(n) {return n === 1;});

// should return [1, 0, 1].

dropElements([1, 2, 3], function(n) {return n > 0;});

// should return [1, 2, 3].

dropElements([1, 2, 3, 4], function(n) {return n > 5;});

// should return [].

dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;});

// should return [7, 4].

dropElements([1, 2, 3, 9, 2], function(n) {return n > 2;});

// should return [3, 9, 2].