Function _pluck

external/.datatables.js:1120–1142

(a, prop, prop2)

	}

	var _pluck = function (a, prop, prop2) {
		var out = []
		var i = 0,
			ien = a.length

		// Could have the test in the loop for slightly smaller code, but speed
		// is essential here
		if (prop2 !== undefined) {
			for (; i < ien; i++) {
				if (a[i] && a[i][prop]) {
					out.push(a[i][prop][prop2])
				}
			}
		} else {
			for (; i < ien; i++) {
				if (a[i]) {
					out.push(a[i][prop])
				}
			}
		}

		return out
	}

	// Basically the same as _pluck, but rather than looping over `a` we use `order`
	// as the indexes to pick from `a`