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- var baseToString = require('./_baseToString'),
- castSlice = require('./_castSlice'),
- charsEndIndex = require('./_charsEndIndex'),
- charsStartIndex = require('./_charsStartIndex'),
- stringToArray = require('./_stringToArray'),
- toString = require('./toString');
-
-
- var reTrim = /^\s+|\s+$/g;
-
-
- function trim(string, chars, guard) {
- string = toString(string);
- if (string && (guard || chars === undefined)) {
- return string.replace(reTrim, '');
- }
- if (!string || !(chars = baseToString(chars))) {
- return string;
- }
- var strSymbols = stringToArray(string),
- chrSymbols = stringToArray(chars),
- start = charsStartIndex(strSymbols, chrSymbols),
- end = charsEndIndex(strSymbols, chrSymbols) + 1;
-
- return castSlice(strSymbols, start, end).join('');
- }
-
- module.exports = trim;
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