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