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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 |