Function invertKeyValues

external/.datatables.js:17241–17247

* Switch the key value pairing of an index array to be value key (i.e. the old value is now the * key). For example consider [ 2, 0, 1 ] this would be returned as [ 1, 2, 0 ]. * * @param array arr Array to switch around

(arr)

	 *  @param   array arr Array to switch around
	 */
	function invertKeyValues(arr) {
		var result = []
		for (var i = 0; i < arr.length; i++) {
			result[arr[i]] = i
		}
		return result
	}
	/**
	 * Move one or more columns from one index to another.
	 *