node/tools/eslint/node_modules/lodash/array/takeRight.js
Michaël Zasso 2d441493a4 tools: update eslint to v1.10.3
PR-URL: https://github.com/nodejs/io.js/pull/2286
Reviewed-By: Roman Reiss <me@silverwind.io>
2016-01-13 23:15:39 +01:00

41 lines
959 B
JavaScript

var baseSlice = require('../internal/baseSlice'),
isIterateeCall = require('../internal/isIterateeCall');
/**
* Creates a slice of `array` with `n` elements taken from the end.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to query.
* @param {number} [n=1] The number of elements to take.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.takeRight([1, 2, 3]);
* // => [3]
*
* _.takeRight([1, 2, 3], 2);
* // => [2, 3]
*
* _.takeRight([1, 2, 3], 5);
* // => [1, 2, 3]
*
* _.takeRight([1, 2, 3], 0);
* // => []
*/
function takeRight(array, n, guard) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
if (guard ? isIterateeCall(array, n, guard) : n == null) {
n = 1;
}
n = length - (+n || 0);
return baseSlice(array, n < 0 ? 0 : n);
}
module.exports = takeRight;