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- 'use strict';
-
- /**
- * Module dependencies
- */
-
- exports.extend = require('extend-shallow');
- exports.SourceMap = require('source-map');
- exports.sourceMapResolve = require('source-map-resolve');
-
- /**
- * Convert backslash in the given string to forward slashes
- */
-
- exports.unixify = function(fp) {
- return fp.split(/\\+/).join('/');
- };
-
- /**
- * Return true if `val` is a non-empty string
- *
- * @param {String} `str`
- * @return {Boolean}
- */
-
- exports.isString = function(str) {
- return str && typeof str === 'string';
- };
-
- /**
- * Cast `val` to an array
- * @return {Array}
- */
-
- exports.arrayify = function(val) {
- if (typeof val === 'string') return [val];
- return val ? (Array.isArray(val) ? val : [val]) : [];
- };
-
- /**
- * Get the last `n` element from the given `array`
- * @param {Array} `array`
- * @return {*}
- */
-
- exports.last = function(arr, n) {
- return arr[arr.length - (n || 1)];
- };
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