lodash / lodash

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	import castSlice from './.internal/castSlice.js'
	import charsEndIndex from './.internal/charsEndIndex.js'
	import charsStartIndex from './.internal/charsStartIndex.js'
	import stringToArray from './.internal/stringToArray.js'

	/**
	* Removes leading and trailing whitespace or specified characters from `string`.
	*
	* @since 3.0.0
	* @category String
	* @param {string} [string=''] The string to trim.
	* @param {string} [chars=whitespace] The characters to trim.
	* @returns {string} Returns the trimmed string.
	* @see trimEnd, trimStart
	* @example
	*
	* trim(' abc ')
	* // => 'abc'
	*
	* trim('-_-abc-_-', '_-')
	* // => 'abc'
	*/
	function trim(string, chars) {
	if (string && chars === undefined) {
	return string.trim()
	}
	if (!string \|\| !chars) {
	return (string \|\| '')
	}
	const strSymbols = stringToArray(string)
	const chrSymbols = stringToArray(chars)
	const start = charsStartIndex(strSymbols, chrSymbols)
	const end = charsEndIndex(strSymbols, chrSymbols) + 1

	return castSlice(strSymbols, start, end).join('')
	}

	export default trim

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