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function array_pad (input, pad_size, pad_value) {
// http://jsphp.co/jsphp/fn/view/array_pad
// + original by: Waldo Malqui Silva
// * example 1: array_pad([ 7, 8, 9 ], 2, 'a');
// * returns 1: [ 7, 8, 9]
// * example 2: array_pad([ 7, 8, 9 ], 5, 'a');
// * returns 2: [ 7, 8, 9, 'a', 'a']
// * example 3: array_pad([ 7, 8, 9 ], 5, 2);
// * returns 3: [ 7, 8, 9, 2, 2]
// * example 4: array_pad([ 7, 8, 9 ], -5, 'a');
// * returns 4: [ 'a', 'a', 7, 8, 9 ]
var pad = [],
newArray = [],
newLength,
diff = 0,
i = 0;
if (Object.prototype.toString.call(input) === '[object Array]' && !isNaN(pad_size)) {
newLength = ((pad_size < 0) ? (pad_size * -1) : pad_size);
diff = newLength - input.length;
if (diff > 0) {
for (i = 0; i < diff; i++) {
newArray[i] = pad_value;
}
pad = ((pad_size < 0) ? newArray.concat(input) : input.concat(newArray));
} else {
pad = input;
}
}
return pad;
}
