1 var baseToString = require('../internal/baseToString'),
2 charsLeftIndex = require('../internal/charsLeftIndex'),
3 charsRightIndex = require('../internal/charsRightIndex'),
4 isIterateeCall = require('../internal/isIterateeCall'),
5 trimmedLeftIndex = require('../internal/trimmedLeftIndex'),
6 trimmedRightIndex = require('../internal/trimmedRightIndex');
9 * Removes leading and trailing whitespace or specified characters from `string`.
14 * @param {string} [string=''] The string to trim.
15 * @param {string} [chars=whitespace] The characters to trim.
16 * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
17 * @returns {string} Returns the trimmed string.
23 * _.trim('-_-abc-_-', '_-');
26 * _.map([' foo ', ' bar '], _.trim);
27 * // => ['foo', 'bar']
29 function trim(string, chars, guard) {
31 string = baseToString(string);
35 if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
36 return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1);
39 return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1);
42 module.exports = trim;