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var baseSlice = require('./_baseSlice'), | |
toInteger = require('./toInteger'); | |
/** | |
* Creates a slice of `array` with `n` elements dropped from the end. | |
* | |
* @static | |
* @memberOf _ | |
* @since 3.0.0 | |
* @category Array | |
* @param {Array} array The array to query. | |
* @param {number} [n=1] The number of elements to drop. | |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | |
* @returns {Array} Returns the slice of `array`. | |
* @example | |
* | |
* _.dropRight([1, 2, 3]); | |
* // => [1, 2] | |
* | |
* _.dropRight([1, 2, 3], 2); | |
* // => [1] | |
* | |
* _.dropRight([1, 2, 3], 5); | |
* // => [] | |
* | |
* _.dropRight([1, 2, 3], 0); | |
* // => [1, 2, 3] | |
*/ | |
function dropRight(array, n, guard) { | |
var length = array == null ? 0 : array.length; | |
if (!length) { | |
return []; | |
} | |
n = (guard || n === undefined) ? 1 : toInteger(n); | |
n = length - n; | |
return baseSlice(array, 0, n < 0 ? 0 : n); | |
} | |
module.exports = dropRight; | |